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Those builds are originally for my private use and they are released because of my goodwill that I think they may help others. This bug doesn't affect me and so I don't have big intention on hunting and fixing it. If you want this to be fixed you at least need to find when the problem started to occur. and last but not least, stop gaslighting.

New build of Serpent/UXP for XP! Test binary: Win32 https://o.rthost.win/basilisk/basilisk52-g4.8.win32-git-20251206-3219d2d-uxp-e4afc5655b-xpmod.7z Win64 https://o.rthost.win/basilisk/basilisk52-g4.8.win64-git-20251206-3219d2d-uxp-e4afc5655b-xpmod.7z source code that is comparable to my current working tree is available here: https://github.com/roytam1/UXP/commits/custom IA32 Win32 https://o.rthost.win/basilisk/basilisk52-g4.8.win32-git-20251206-3219d2d-uxp-e4afc5655b-xpmod-ia32.7z source code that is comparable to my current working tree is available here: https://github.com/roytam1/UXP/commits/ia32 NM28XP build: Win32 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win32-git-20251206-d849524bd-uxp-e4afc5655b-xpmod.7z Win32 IA32 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win32-git-20251206-d849524bd-uxp-e4afc5655b-xpmod-ia32.7z Win32 SSE https://o.rthost.win/palemoon/palemoon-28.10.7a1.win32-git-20251206-d849524bd-uxp-e4afc5655b-xpmod-sse.7z Win64 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win64-git-20251206-d849524bd-uxp-e4afc5655b-xpmod.7z Win7+ x64 AVX2 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win64-git-20251206-d849524bd-uxp-e4afc5655b-w7plus-avx2.7z Official UXP changes picked since my last build: - Issue #2489 - fix `color-mix` implementation. (103bd151c8) - Issue #2847 - Update tests and toolkit CSS to account for `windows-win11` (becf65d05a) - Issue #2869 - Make Purple Buffer additions check if cell is tenured. (34d1d5a650) No official Pale-Moon changes picked since my last build. No official Basilisk changes picked since my last build. My changes picked since my last build: - layout: restore xp theme names in test (c80b9fc1ea) - ffvpx: update ffmpeg to 3.4.14 ( https://github.com/FFmpeg/FFmpeg/commit/9983d098ff0ee54bc3b77676dd885883bfbe4ffb ) (83cd56dfbb) - nss: update certdata and bump ckbi version to 2.82 (d8a03301d4) - dns: update effective_tld_names.dat from https://publicsuffix.org/list/public_suffix_list.dat (e27800bb2a) - icu: update timezone data (cb88bccc0a) - security: update EV root data (c417312184) - icu: import backport of ICU-20558 (Fix regression in DateTimePatternGenerator) (dc67193fba) - icu: if langTag is empty, point it to root.txt as well (9e8e5fbd83) - icu-data: regenerate with icu_sources_data.py (e4afc5655b) Update Notice: - You may delete file named icudt*.dat inside program folder when updating from old releases. * Notice: From now on, UXP rev will point to `custom` branch of my UXP repo instead of MCP UXP repo, while "official UXP changes" shows only `tracking` branch changes.

New build of Serpent/UXP for XP! Test binary: Win32 https://o.rthost.win/basilisk/basilisk52-g4.8.win32-git-20251225-3219d2d-uxp-fd19819276-xpmod.7z Win64 https://o.rthost.win/basilisk/basilisk52-g4.8.win64-git-20251225-3219d2d-uxp-fd19819276-xpmod.7z source code that is comparable to my current working tree is available here: https://github.com/roytam1/UXP/commits/custom IA32 Win32 https://o.rthost.win/basilisk/basilisk52-g4.8.win32-git-20251225-3219d2d-uxp-fd19819276-xpmod-ia32.7z source code that is comparable to my current working tree is available here: https://github.com/roytam1/UXP/commits/ia32 NM28XP build: Win32 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win32-git-20251225-d849524bd-uxp-fd19819276-xpmod.7z Win32 IA32 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win32-git-20251225-d849524bd-uxp-fd19819276-xpmod-ia32.7z Win32 SSE https://o.rthost.win/palemoon/palemoon-28.10.7a1.win32-git-20251225-d849524bd-uxp-fd19819276-xpmod-sse.7z Win64 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win64-git-20251225-d849524bd-uxp-fd19819276-xpmod.7z Win7+ x64 AVX2 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win64-git-20251225-d849524bd-uxp-fd19819276-w7plus-avx2.7z Official UXP changes picked since my last build: - Issue #2306: Implement WeakRef functionality (5eab8c0aff) - Issue #2306: Add pref-gated WeakRef with safe stub when disabled (5895253f46) - Issue #2306: Fix spacing (b9ded9c3dc) - Issue #2306: Remove unneeded addition of streams_ in ContextOptions() (d43e57f885) - Issue #2306: Add test js (c171ddeace) - Issue #2863 - Part 1 - Update patches for ICU 78.1 (53662b13d8) - Issue #2863 - Part 2 - Filter ICU data for build (d5bcbfd06b) - Issue #2863 - Part 3 - Patch in non-dll suppression (fe4deee340) - Issue #2051 - Part 3 - Use pre-built big-endian ICU data file for big-endian builds. https://bugzilla.mozilla.org/show_bug.cgi?id=1264836 Disable unused ICU code during build. (7299df4737) - Issue #2863 - Part 4 - Use recommended ICU build options flags. (759d7984c7) - Issue #2863 - Part 5 - Update reading source objects (35cb857c80) - Issue #2863 - Part 6 - Make ICU with multiple jobs for faster rebuilds. (72f6135946) - Issue #2863 - Part 7 - Don't delete files now that they're filtered (c8491cff14) - Issue #2863 - Part 8 - Add note to run `make_intl_data.py langtags` (5a3d10212f) - Issue #2863 - Part 9 - Retain util_props.cpp (a8a1c5c250) - Issue #2863 - Part 10 - Add New Line Breaker Entries (afa02844dd) - Issue #2863 - Part 11 - Remove no longer needed locale maximization when removing likely subtags. (b31a7165e5) - Issue #2863 - Part 12 - Filter SCRIPT_CODE extensions from CLDR (25caba3df9) - Issue #2863 - Part 13 - Remove non-IANA Zones (77f1baf2ce) - Issue #2863 - Part 14 - Update switch to handle new UNumberFormatFields entries. (f47df7a663) - Issue #2863 - Part 15 - Update special casing script (98fc5db142) - Issue #2863 - Part 16 - Update locale canonicalization algorithm for changes from CLDR 39 (3f06fa4c2a) - Issue #2863 - Part 17 - Update ICU source to 78.1 (a29a80493f) - Issue #2281 - Remove the use of non-standard namespace std::tr1 in Google's WebRTC gtest code (cf85580d6e) - Issue #2863 - Part 18 - Update Unicode in Spidermonkey (852e690460) - Issue #2863 - Part 19 - Update CLDR to 48 (666b590bd4) - Issue #2863 - Part 20 - Update special casing in Gecko (ec13c2746d) - Issue #2863 - Part 21 - Update Unicode property data in Gecko (42d7950b0c) - Issue #2863 - Part 22 - Update tzdata source to 2025c (929b21c718) - Issue #2863 - Part 23 - Update tzdata in Spidermonkey (f728497818) - Issue #2863 - Part 24 - Remove special-casing for Etc/UCT (c77fea8760) - emoji-17.0 - Update Twemoji font to unicode 17.0.0 (36a295e4ef) - Issue #2857 - Implement `inset-block` and `inset-inline` CSS shorthand (5a832a6e24) No official Pale-Moon changes picked since my last build. No official Basilisk changes picked since my last build. My changes picked since my last build: - icu: restore pre-NT6 codepaths by reverting to old version with fixes, and fix v141_xp build (9f6727874f) Update Notice: - You may delete file named icudt*.dat and icu63.dll inside program folder when updating from old releases. * Notice: From now on, UXP rev will point to `custom` branch of my UXP repo instead of MCP UXP repo, while "official UXP changes" shows only `tracking` branch changes.

New build of Serpent/UXP for XP! Test binary: Win32 https://o.rthost.win/basilisk/basilisk52-g4.8.win32-git-20251220-3219d2d-uxp-b9f12b43c6-xpmod.7z Win64 https://o.rthost.win/basilisk/basilisk52-g4.8.win64-git-20251220-3219d2d-uxp-b9f12b43c6-xpmod.7z source code that is comparable to my current working tree is available here: https://github.com/roytam1/UXP/commits/custom IA32 Win32 https://o.rthost.win/basilisk/basilisk52-g4.8.win32-git-20251220-3219d2d-uxp-b9f12b43c6-xpmod-ia32.7z source code that is comparable to my current working tree is available here: https://github.com/roytam1/UXP/commits/ia32 NM28XP build: Win32 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win32-git-20251220-d849524bd-uxp-b9f12b43c6-xpmod.7z Win32 IA32 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win32-git-20251220-d849524bd-uxp-b9f12b43c6-xpmod-ia32.7z Win32 SSE https://o.rthost.win/palemoon/palemoon-28.10.7a1.win32-git-20251220-d849524bd-uxp-b9f12b43c6-xpmod-sse.7z Win64 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win64-git-20251220-d849524bd-uxp-b9f12b43c6-xpmod.7z Win7+ x64 AVX2 https://o.rthost.win/palemoon/palemoon-28.10.7a1.win64-git-20251220-d849524bd-uxp-b9f12b43c6-w7plus-avx2.7z Official UXP changes picked since my last build: - Issue #2873 - Don't let toolkit override colors of autofilled form elements. (17d951328f) - Issue #2861 - Part 1: Allow nsNPAPIPlugin::RunPluginOOP to be made false. (d2ab969724) - Issue #2861 - Part 2: Restore nsIPluginHost.isPluginOOP. (69ebe8322d) - Issue #2861 - Remove checks that forcibly enable or disable OOP. (e6d9cc0146) - Issue #2875 - Cleanup: Remove leading whitespace in nsPluginHost.cpp. (372df4ebe7) - Issue #2861 - Remove Mac-specific ifdefs. (108523f5fd) - Issue #2875 - Ensure OOP for plugins by default even if pref couldn't be found. (cdab710ed0) - Issue #2861 - Bring back forced OOPP for GTK3. (dd61d079b0) - Issue #2861 - Part 2 Follow-up: nsIPluginHost.isPluginOOP should not always return true. (668296cf5d) - [devtools] Further improve "Copy as cURL" (b3c406bb25) - [js] Append InstSize factor for secondary range veneers. (81bcafc331) - [DOM] Add stride check for canvas tex conversion from blob. (95e0feec7c) - [devtools] Further improve "Copy as cURL" (68fa0f0d54) - [image] Use the TriggeringPrincipal if we have one, not the SystemPrincipal (4667b7f4b0) - [NSS] Destroy certificate on error paths (01d894938b) - Issue Pale-Moon#2002 - Remove FreeBSD compat13x dependency on 15.x. Remove the 2 libutil OS_LIBS and dynamically load libutil.so instead. (2a2a85f888) - Issue #2865 - Implement `URL.canParse()` (12e5c5c303) Official Pale-Moon changes picked since my last build: - [Pale-Moon] Issue #1979 - Use async callback to update cache UI (7e23650580) - [Pale-Moon] Issue #1914 - Update several SSUAOs (da35b48afd) - [Pale-Moon] Un-prefix -moz-user-select (06890bcb06) - [Pale-Moon] Remove Instagram SSUAO (4265868605) - [Pale-Moon] Issue #1987 - Use `overflow: clip` (88f220896b) - [Pale-Moon] Issue #1954 - Reset `userTypedValue` if fragment navigating within a doc. (c167bc756f) - [Pale-Moon] Issue #1991 - Add UI preference for reduced visual motion. (58648a77ad) - [Pale-Moon] Update Windows version check caller after WindowsVersion.h updates. (f0d40ae44b) - [Pale-Moon] Issue #1992 - Part 1: Update AppMenu icons (6933910ed5) - [Pale-Moon] Issue #1992 - Part 2: Tweak Windows 10+ styling. (02fac4d52e) - [Pale-Moon] Issue #1992 - Part 3: Remove italic style from AppMenu edit label. (f61835829a) - [Pale-Moon] Issue #1992 - Part 4: Fix issues with the main toolbar. (5f2bc6123b) - [Pale-Moon] Issue #1992 - Part 5: Slightly more breathing room for the window title. (1843e173cf) - [Pale-Moon] Issue #1992 - Part 6: Overhaul caption buttons and add win 11 specifics. (ca7e904b27) - [Pale-Moon] Issue #1992 - Part 7: Remove glass override for Win 10/11. (4af2abb312) - [Pale-Moon] Issue #1992 - Part 8: Minor tweaks and update downloads button styling. (4e3531ed96) - [Pale-Moon] No Issue - http -> https for start.palemoon.org default. (cdd4d99499) - [Pale-Moon] Issue #1992 - Correct default non-compositing color on Win 11 to RGB 243. (549e05be0c) - [Pale-Moon] Add Win11 styling in browser-title.css (442965e997) - [Pale-Moon] Add id to viewToolbarsMenu's menupopup (c955ee0ac4) No official Basilisk changes picked since my last build. My changes picked since my last build: - [Pale-Moon] partly revert rev f0d40ae4 to fix build (b9f12b43c6) Update Notice: - You may delete file named icudt*.dat inside program folder when updating from old releases. * Notice: From now on, UXP rev will point to `custom` branch of my UXP repo instead of MCP UXP repo, while "official UXP changes" shows only `tracking` branch changes.

Merry Christmas and please enjoy a freshly specially experimental build!

New build of post-deprecated Serpent/moebius for XP! * Notice: This repo will not be built on regular schedule, and changes are experimental as usual. ** Current moebius patch level should be on par with 52.9, but some security patches can not be applied/ported due to source milestone differences between versions. Test binary: Win32 https://o.rthost.win/basilisk/basilisk55-win32-git-20251206-23f410065-xpmod.7z Win64 https://o.rthost.win/basilisk/basilisk55-win64-git-20251206-23f410065-xpmod.7z repo: https://github.com/roytam1/basilisk55 Repo changes: - import from UXP: Issue #2489 - fix `color-mix` implementation. (103bd151) (1791c6a30) - import from UXP: Issue #2847 - Update tests and toolkit CSS to account for `windows-win11` (becf65d0) (bb4464dfb) - import from UXP: Issue #2869 - Make Purple Buffer additions check if cell is tenured. (34d1d5a6) (be165adf3) - ffvpx: update ffmpeg to 3.4.14 ( https://github.com/FFmpeg/FFmpeg/commit/9983d098ff0ee54bc3b77676dd885883bfbe4ffb ) (c182ca3c9) - nss: update certdata and bump ckbi version to 2.82 (db7a51891) - update timezone tld and ev root data (58e09f3c7) - icu-data: regenerate with icu_sources_data.py (868997718) - icu: import backport of ICU-20558 (Fix regression in DateTimePatternGenerator) (72c196bdb) - icu: if langTag is empty, point it to root.txt as well (23f410065)

KB936235 : info file newversion KB955988 Replace the Cimwin32.dll file. KB2676562 Leak Update Version for SP2 Replace all nt kernel & system files KB944340 : info file newversion KB2676562 Leak Update Version for SP2 Replace the kernel32.dll file. You can get all my Source Files Update Packs SP2 here. I would like everyone to archive them. Because they hotfix share is gone forever. https://drive.google.com/file/d/15B55MqPXmJlbSx3Uc4qNmXpsaUH63oBt/view?usp=sharing my link backup in archive.org https://archive.org/details/windows-2000-post-sp4-update-pack https://archive.org/details/windows-xp-post-sp1-update-pack https://archive.org/details/windows-xp-post-sp2-update-pack https://archive.org/details/windows-xp-post-sp3-update-pack https://archive.org/details/windows-xp-and-server-2003-x64-update-pack https://archive.org/details/windows-server-2003-x86-update-pack_202506

aaah, no clue whats wrong here: 0:26.17 c:/devel/myUXP/intl/icu/source/i18n/messageformat2_function_registry.cpp(862): error C2280: 'icu_78::message2::StandardFunctions::Plural::Plural(const icu_78::message2::StandardFunctions::Plural &)': attempting to reference a deleted function 0:26.17 c:\devel\myuxp\intl\icu\source\i18n\messageformat2_function_registry_internal.h(248): note: compiler has generated 'icu_78::message2::StandardFunctions::Plural::Plural' here 0:26.17 c:\devel\myuxp\intl\icu\source\i18n\messageformat2_function_registry_internal.h(248): note: 'icu_78::message2::StandardFunctions::Plural::Plural(const icu_78::message2::StandardFunctions::Plural &)': function was implicitly deleted because a data member invokes a deleted or inaccessible function 'icu_78::LocalPointer<icu_78::message2::StandardFunctions::Number>::LocalPointer(const icu_78::LocalPointer<icu_78::message2::StandardFunctions::Number> &)' 0:26.17 c:\devel\myUXP\intl\icu\source\common\unicode/localpointer.h(343): note: 'icu_78::LocalPointer<icu_78::message2::StandardFunctions::Number>::LocalPointer(const icu_78::LocalPointer<icu_78::message2::StandardFunctions::Number> &)': function was implicitly deleted because 'icu_78::LocalPointer<icu_78::message2::StandardFunctions::Number>' has a user-defined move constructor and v141_xp seems to be not good enough to build ICU 78. EDIT: got it fixed, -std:c++17 is needed by new ICU, so vc2015 branch will no longer be buildable as ICU can't be skipped. EDIT2: the above error is solved by adding a copy-ctr line in localpointer.h, all changes are in https://github.com/roytam1/UXP/commit/9f6727874f81bf98ef3f54f046d14c6c5cfdc20f , and hope I did it right. I think I can make a special release tomorrow! And now I have a newer-than-mypal ICU and feodor2 may have a look?

Generally, Panda Antivirus Free is working under Windows XP, even in the most recent version. However, there are two issues. The first issue which I noticed is the unability to connect to a Panda Dome account. Every time you open the programme interface, you are annoyed by a pop-up window asking you to log in to a Panda Dome account. However, this does not work under Windows XP and ends with an error message. There is no official solution for this error. But I have a solution. It appears to be a TLS problem. A secure connection is required, which Windows XP cannot establish natively. The solution is ProxHTTPSProxy, HTTPSProxy or ProxyMII which you can get in my thread Simply set the proxy in the Panda Antivirus settings and set up your Panda Dome account. Once this is done, Panda will no longer bother you, and the proxy settings can be deleted again. The second issue consists of a delay of several minutes during system start-up. Panda Antivirus needs round about 5 minutes to be completely loaded on my machine. I tried different versions and possible solutions, but nothing helped. Therefore, this issue has been reported by me to Panda's support. We will see what happens. Greetings from Germany, AstroSkipper

I was able to login in with OAth2 using MailNews with an outlook account. I had to go in the config editor and set *general.useragent.compatMode.firefox* to true. Then the Microsoft login page displayed properly and worked. Hope it helps some folks, I am using windows server 2003

There are now (at the end of 2025) very, very few anti-malware programmes for Windows XP with real-time protection free of charge. Panda Free Antivirus is an absolute exception. It is still maintained and runs under Windows XP. Here are two screenshots of the current version 22.03.05, which has just been released: An anti-malware programme with a most recent scan engine and up-to-date virus definitions even under very old OSes like Windows XP or Windows Vista. What more could be wanted? Here is the link to my updated article: Cheers, AstroSkipper

hmm, confirmed v30i and v31 also works. and it seems to be broken in v31a and later. since there is no release note and/or changelog for v31a, nothing is known besides ntdll and kernel32 are newer in v31a.

https://github.com/LordOfMice/Tools/blob/master/nvme9x.zip High speed of executing large (>64K) I/O requests. Custom DMA handling instead of using OS service. Large requests (from 64K to max size supported by controller) executed as fast as in NT now.

FFmpeg update. XP: shared static libfdk-aac VISTAx86: shared static libfdk-aac

yes it is always an issue because GetLogicalProcessorInformation is missing in XP SP2. you may either update kernel32.dll with that API available(i.e. WindowsXP-KB936235-v2): http://kmeleonbrowser.org/forum/read.php?19,143253,page=10 or patching your target application with kernelxp and patchk32. https://github.com/roytam1/rtoss/tree/master/kernelxp a patched SP52 running on just-installed XP SP2 VM: or unpatched SP52 build on WindowsXP-KB936235-v2-x86-ENU installed XP SP2 VM:

New build of post-deprecated Serpent/moebius for XP! * Notice: This repo will not be built on regular schedule, and changes are experimental as usual. ** Current moebius patch level should be on par with 52.9, but some security patches can not be applied/ported due to source milestone differences between versions. Test binary: Win32 https://o.rthost.win/basilisk/basilisk55-win32-git-20251225-e8bf1a87f-xpmod.7z Win64 https://o.rthost.win/basilisk/basilisk55-win64-git-20251225-e8bf1a87f-xpmod.7z repo: https://github.com/roytam1/basilisk55 Repo changes: - ported from UXP: Issue #2306: Implement WeakRef functionality (5eab8c0a) (6593da0bd) - ported from UXP: Issue #2306: Add pref-gated WeakRef with safe stub when disabled (5895253f) (b07afbb3e) - import from UXP: Issue #2306: Fix spacing (b9ded9c3) (d68445246) - ported from UXP: Issue #2306: Remove unneeded addition of streams_ in ContextOptions() (d43e57f8) (df4c765a7) - import from UXP: Issue #2306: Add test js (c171ddea) (223b2a470) - ported from UXP: Issue #2863 - Part 1 - Update patches for ICU 78.1 (53662b13) (3a4140453) - import from UXP: Issue #2863 - Part 2 - Filter ICU data for build (d5bcbfd0) (67724cfb9) - ported from UXP: Issue #2863 - Part 3 - Patch in non-dll suppression (fe4deee3) (3fada1a0e) - import from UXP: Issue #2051 - Part 3 - Use pre-built big-endian ICU data file for big-endian builds. https://bugzilla.mozilla.org/show_bug.cgi?id=1264836 Disable unused ICU code during build. (7299df47) (0a7458859) - import from UXP: Issue #2863 - Part 4 - Use recommended ICU build options flags. (759d7984) (7b5f67620) - import from UXP: Issue #2863 - Part 5 - Update reading source objects (35cb857c) (452b32a22) - import from UXP: Issue #2863 - Part 6 - Make ICU with multiple jobs for faster rebuilds. (72f61359) (b5331bdb6) - import from UXP: Issue #2863 - Part 7 - Don't delete files now that they're filtered (c8491cff) (8d43b8b12) - import from UXP: Issue #2863 - Part 8 - Add note to run `make_intl_data.py langtags` (5a3d1021) (d15c0dc7d) - import from UXP: Issue #2863 - Part 9 - Retain util_props.cpp (a8a1c5c2) (ca5715a00) - import from UXP: Issue #2863 - Part 10 - Add New Line Breaker Entries (afa02844) (8c4575973) - import from UXP: Issue #2863 - Part 11 - Remove no longer needed locale maximization when removing likely subtags. (b31a7165) (d59467deb) - import from UXP: Issue #2863 - Part 12 - Filter SCRIPT_CODE extensions from CLDR (25caba3d) (60e07b23a) - import from UXP: Issue #2863 - Part 13 - Remove non-IANA Zones (77f1baf2) (631486a72) - import from UXP: Issue #2863 - Part 14 - Update switch to handle new UNumberFormatFields entries. (f47df7a6) (0b6e69a35) - import from UXP: Issue #2863 - Part 15 - Update special casing script (98fc5db1) (6d0cdf00f) - import from UXP: Issue #2863 - Part 16 - Update locale canonicalization algorithm for changes from CLDR 39 (3f06fa4c) (fb4a3c5c9) - import from UXP: Issue #2281 - Remove the use of non-standard namespace std::tr1 in Google's WebRTC gtest code (cf85580d) (c03434692) - ported from `custom` branch of UXP: Issue #2863 - Part 17 - Update ICU source to 78.1 (a29a8049) and fixes (9f672787) (38bdf911b) - gmp: stop unified build to avoid build bustage (757d587fe) - import from UXP: Issue #2863 - Part 18 - Update Unicode in Spidermonkey (852e6904) (6a04657eb) - import from UXP: Issue #2863 - Part 19 - Update CLDR to 48 (666b590b) (89b712a31) - import from UXP: Issue #2863 - Part 20 - Update special casing in Gecko (ec13c274) (f97d9374f) - import from UXP: Issue #2863 - Part 21 - Update Unicode property data in Gecko (42d7950b) (1fabdf19c) - ported from UXP: Issue #2863 - Part 22 - Update tzdata source to 2025c (929b21c7) (d1aaae52d) - ported from UXP: Issue #2863 - Part 23 - Update tzdata in Spidermonkey (f7284978) (ec0aa8a35) - import from UXP: Issue #2863 - Part 24 - Remove special-casing for Etc/UCT (c77fea87) (8098de289) - ported from UXP: emoji-17.0 - Update Twemoji font to unicode 17.0.0 (36a295e4) (8549af4bc) - import from UXP: Issue #2857 - Implement `inset-block` and `inset-inline` CSS shorthand (5a832a6e) (7e09c7b47) - dom/webrtc: explicitly exporting `NormalizedConstraintSet::Range<bool>::Merge()` to fix build (e8bf1a87f)

Apparently, I'm not the only one who has noticed such abnormal delays when starting up Panda while system start: 16 minutes! That's record-breaking. Any other here observing similar issues?

If you encounter problems installing Panda Antivirus Free and uninstalling it fails or is incomplete, you should use the Panda Dome Generic Uninstaller, which is available here: https://techsearch.pandasecurity.com/PandaKBView?id=kA1Vr00000064QjKAI

Microsoft .NET Framework 4 is needed and should be installed to ensure that Panda Dome runs correctly.

New build of post-deprecated Serpent/moebius for XP! * Notice: This repo will not be built on regular schedule, and changes are experimental as usual. ** Current moebius patch level should be on par with 52.9, but some security patches can not be applied/ported due to source milestone differences between versions. Test binary: Win32 https://o.rthost.win/basilisk/basilisk55-win32-git-20251220-81840e9b0-xpmod.7z Win64 https://o.rthost.win/basilisk/basilisk55-win64-git-20251220-81840e9b0-xpmod.7z repo: https://github.com/roytam1/basilisk55 Repo changes: - import from UXP: Issue #2873 - Don't let toolkit override colors of autofilled form elements. (17d95132) (41862e21c) - ported from UXP: Issue #2861 - Part 1: Allow nsNPAPIPlugin::RunPluginOOP to be made false. (d2ab9697) (f4c8acc40) - import from UXP: Issue #2861 - Part 2: Restore nsIPluginHost.isPluginOOP. (69ebe832) (b1ed368ee) - import from UXP: Issue #2861 - Remove checks that forcibly enable or disable OOP. (e6d9cc01) (9e977be49) - import from UXP: Issue #2875 - Cleanup: Remove leading whitespace in nsPluginHost.cpp. (372df4eb) (0dd28cf96) - import from UXP: Issue #2861 - Remove Mac-specific ifdefs. (108523f5) (be5c04d98) - import from UXP: Issue #2875 - Ensure OOP for plugins by default even if pref couldn't be found. (cdab710e) (f5d6b5e44) - import from UXP: Issue #2861 - Bring back forced OOPP for GTK3. (dd61d079) (5e872b560) - import from UXP: Issue #2861 - Part 2 Follow-up: nsIPluginHost.isPluginOOP should not always return true. (668296cf) (06ce41698) - import from UXP: [devtools] Further improve "Copy as cURL" (b3c406bb) (7059944d3) - import from UXP: [js] Append InstSize factor for secondary range veneers. (81bcafc3) (1f1743630) - import from UXP: [DOM] Add stride check for canvas tex conversion from blob. (95e0feec) (f3ff4fb05) - import from UXP: [devtools] Further improve "Copy as cURL" (68fa0f0d) (54292a252) - import from UXP: [image] Use the TriggeringPrincipal if we have one, not the SystemPrincipal (4667b7f4) (2eae097a1) - import from UXP: [NSS] Destroy certificate on error paths (01d89493) (b39f71e0f) - ported from UXP: Issue Pale-Moon#2002 - Remove FreeBSD compat13x dependency on 15.x. Remove the 2 libutil OS_LIBS and dynamically load libutil.so instead. (2a2a85f8) (46bae686f) - import from UXP: Issue #2865 - Implement `URL.canParse()` (12e5c5c3) (81840e9b0)

Ran into a small problem after downloading your 'offline installer' download. I got offline to run the download and found out that I need to have .NET Framework also installed. I did have .NET Framework 2.0 installed years ago but removed it. Didn't seem to have much use for it on Win XP at the time. If there were any programs that might require it I was always able to find another program that didn't need .NET Framework to run. I have all the .NET Framework versions that worked on XP stored on a DVD backup with other old Win XP programs ... in case needed one day. I think at the time .NET Framework 3.5 was the last version to work on XP but after getting back online to search around I now see that there is a .NET Framework 4.0 that will install on Win XP SP3. I have now downloaded that version but I may just try .NET Framework 2.0 first out of curiosity and see if that works. If not then I can jump to version 4.0. That version from MS is dated from last year: 07/15/2024 ... I will put the MS link here in case someone else has need for it. Microsoft .NET Framework 4 (Standalone Installer) https://www.microsoft.com/en-us/download/details.aspx?id=17718 Date Published: 07/15/2024 Supported Operating Systems: Windows 7, Windows 7 SP 1, Windows Vista SP 1, Windows XP SP 3 Windows XP SP3 Windows Vista SP1 or later Windows 7 Windows 7 SP1 Supported Architectures: x86 x64 Thanks ...

AstroSkipper ... Just came across you're updated information dealing with Windows XP and Panda Free Antivirus. Around two weeks ago I was actually looking for any antivirus programs still working with WinXP in 2025. Didn't find any after doing a quick search on some programs that worked many years ago and reading your earlier post on the subject. Thanks again for the update on this valuable information for Windows XP users. ...

This thread is about anti-malware programmes under Windows XP. BTW, there is definitely no need to use an "ancient version of whatever" under Windows 10. And talking about your "ancient version" is like "beating a dead horse". A version of this programme running under Windows XP has not been available for a long time. And it gets even worse: the programme is not secure, and its country of origin is beyond good and evil. In my next article, I will post something current for Windows XP.

Personally, I don't expect modern websites that are full of multimedia or completely overloaded to still run in UXP browsers under old OSes like Windows XP, but I am happy about those that still do. All others are called up by me under Android 10 and above. That's why I'm extremely relaxed about the whole thing. The more websites running in New Moon or Serpent, the better, but if not, then that's just the way it is.

https://github.com/e3kskoy7wqk/Chromium-for-windows-7-REWORK He made few reworked versions. It also can support XP and Vista without extended kernels

I didn't realise there were so many still using SP2 (why?). I will consider building the next version with PyInstaller 5.13.2 again. But do note, that in the future that may not be possible any more, due to the changes they make. Consider upgrading to SP3. In the meantime, here is a build that should work on SP2. @davidz, Do you really mean you're on SP3? Because in my SP3 machine (VM), 2025.12.06.064237 works fine: [debug] Command-line config: ['-v'] [debug] User config "C:\Documents and Settings\Nico\Application Data\yt-dlp\config.txt": ['--rm-cache-dir', '--console-title', '--add-metadata', '--embed-thumbnail', '--convert-thumbnails', 'jpg', '--js-runtimes', 'quickjs', '--ppa', 'ffmpeg:-metadata synopsis=""', '-o', '~/Bureaublad/%(title)s.%(ext)s', '-S', 'res:1080,vcodec:avc,acodec:m4a', '--sponsorblock-remove', 'all', '-N', '6'] [debug] Encodings: locale cp1252, fs utf-8, pref cp1252, out cp1252 (No VT), error cp1252 (No VT), screen cp1252 (No VT) [debug] yt-dlp version nicolaasjan/yt-dlp@2025.12.06.064237 (winXP_x86_exe*) [debug] Python 3.11.4 (CPython x86 32bit) - Windows-XP-5.1.2600-SP3 (OpenSSL 3.5.2 5 Aug 2025) [debug] exe versions: ffmpeg N-121824-g775b102182-WINXP (fdk,setts), ffprobe N-121824-g775b102182-WINXP, phantomjs 1.9.8 [debug] Optional libraries: Cryptodome-3.23.0, brotli-1.2.0, certifi-2025.11.12, mutagen-1.47.0, requests-2.32.5, sqlite3-3.50.4, urllib3-2.6.0, websockets-15.0.1, yt_dlp_ejs-0.3.1 [debug] JS runtimes: quickjs-2025-09-13 [debug] Proxy map: {} [debug] Request Handlers: urllib, requests, websockets [debug] Plugin directories: none [debug] Loaded 1853 extractors Removing cache dir C:\Documents and Settings\Nico/.cache\yt-dlp ..

@Goodwin @roytam1 I'm not a professional, I just compile Mozilla based browsers for my personal use and hope for the best. For instance, I'm trying to compile Firefox 13+ with Windows 2000 compatibility. One thing that sometimes (but not always) causes runtime execution failure is clicking on tools -> options -> applications which can cause an error in MSVCR71.DLL. Also, after reverting the commit that broke Windows 2000 compatibility, I had a minor problem that is caused by opening a new tab, and the message displayed on the new tab page was relating to an invalid address. That annoyance was caused by the commit for Mozilla bug 728429, which mandated ASLR on Windows. In order to find that, I had to cherry-pick a range of commits between the one that broke Windows 2000 compatibility, and the one mandating ASLR, then compile the source code a few times to narrow down my search. The point is, if a problem does not exist in one of roytam1's browser builds, then exists on a later browser version, the right thing to do is find out what the last good version, and the first bad version is, then it would be easier to find when the problem started, and what commit caused it. Also, it is possible a bug might not affect everybody.

If you ***REALLY*** want your video playback looked into, it's kind of ON YOU to do some LEGWORK in NARROWING IT DOWN. *Shoot the messenger* all you want. But that really is the reality of the situation. We (you!) need to tell roytam "playback WORKS in this month-day-year release, but it is BROKEN one week later with the month-day+7-year release".

Notice: seems need some more time on ironing out front-end (win11) related revs from upstream which hopefully can be done in xmas, but UXP related changes are in and hopefully new build (without those front-end changes) will be available this week.

Release: https://github.com/LordOfMice/Tools/blob/master/nvme9x.zip https://github.com/LordOfMice/Tools/blob/master/nvment.zip https://github.com/LordOfMice/Tools/blob/master/nvme2k-src.zip readme: NVMe driver for Windows 9x. Base: nvme2k 1.0.0.2 https://github.com/techomancer/nvme2k Changes: Port for Windows 9x, 64-bit LBA & Fixes 1. Generic - added SCSI 64-bit LBA commands processing (large drives support). Tested on Windows 9x ONLY - fixed controler shutdown code - speed up of command queueing and it is less CPU consuming - fixed enormously low speed or false positive errors on executing of large size requests - various code rectifications 2. Windows 9x specific - port with 2 bug fixes - install script nvme9x.inf written Install and uninstall as usual hardware, nothing specific.

Thanks. I first installed MS .NET Framework v4.0 (18Mar2010) under WinXP SP3. Then I installed OK Panda Dome v21.01.00 under WinXP. I selected "Offline installation" during installation. I have not yet activated the program because activation requires entering an email address. After the first run the Settings window indicates "Last updated 12/26/2025". First the good news: Panda Dome v21.01.00 runs OK under WinXP on my old Inspiron 7500 (700 MHz Pentium III, SSE-only). The program does not seem have a conflict with other programs installed. Kerio Personal Firewall v2.1.5 has no issues with the program. It is even possible to run My Ancient version of Kaspersky simultaneously with Panda Dome, no conflict. Now the bad news: I made a virus-check with Panda Dome v21.01.00 of "My personal in the Wild", which is a collection of 100 infected files downloaded with eMule. I had prepared this collection a year and a half ago for testing-purposes by taking at random 100 files from a HDD full of infected downloads from eMule. Panda Dome v21.01.00 flagged only 6/100 files [msg: 8,531 scanned, 7 detected, i.e. 1 file was flagged twice, because of multiple infections], Only 6 files were quarantined, and 94 infected files were left as "clean" in the folder \My personal in the Wild_6Jul2024\ For comparison: When I ran My ancient version of Kaspersky with this test set of 100 infected eMule files, Kaspersky scanned 171,873 files contained in the various .rar, .zip, .exe etc in \My personal in the Wild_6Jul2024\ and, detected 167 viruses, trojans etc. 99 files were cleaned, the single file which was flagged but not cleaned was a .rar file containing in turn infected multi-part .rar files. Panda Dome v21.01.00 does NOT install under Windows Server 2003 SP2. When I tried to install it under Win2003 SP2 I got the incorrect error message: "You must upgrade your version of .NET Framework". Panda Security apparently did not prepare a recent corporate edition for Windows Server, maybe no demand. Kerio Firewall flags a file named "TUNNEL.EXE", which has to be given permissions. Which IT-Manager would be inclined to license software which opens a tunnel into corporate computers? BTW, Panda Security is a Spanish company https://en.wikipedia.org/wiki/Panda_Security which was acquired in March-June 2020 by the U.S. company WatchGuard https://en.wikipedia.org/wiki/WatchGuard BTW, Kerio Personal Firewall v2.1.5 (30Apr2003) does not have a Server version either, but is still my favorite firewall under WinXP.

https://github.com/LordOfMice/Tools/blob/master/nvme9x.zip Full handling of Windows 9x specific requests that use Linear Scatter/Gather buffer. Update is recommended. Install either by reinstalling the device or manually copying nvme2k.mpd and nvmevsd.vxd to %windir%\SYSTEM\IOSUBSYS\ The problem and solution are described in detail in https://github.com/techomancer/nvme2k/issues/15 There are no remaining issues, except for slightly slower performance under Windows 9x than under NT. This turned out to be an issue with the implementation of standard OS service for DMA (Bus Master) controllers – it's almost impossible to receive a real requests for the controller longer than 64K over any length of time. Solution is possible, but this would require custom implementation, using non-standard code.

Hi To make all new versions of Roytam browsers work under XP SP2, here is the simplest solution... download:CFF-Explorer.exe https://ntcore.com/files/CFF_Explorer.zip Launch CFF Explorer.exe and open the file in the Roytam browser Open concrt140.dll, click on Import Directory, and then click on kernel32.dll then click on the line 00037E0A - 00037E0A - 0256 and Change the function name from "GetLogicalProcessorInformation" to "FindNextFileA", and then Click on Save. do this for all roytam browsers and it now works for xp sp2.

New build of BOC/UXP for XP! Test binary: MailNews Win32 https://o.rthost.win/boc-uxp/mailnews.win32-20251225-40a79c75-uxp-fd19819276-xpmod.7z BNavigator Win32 https://o.rthost.win/boc-uxp/bnavigator.win32-20251225-40a79c75-uxp-fd19819276-xpmod.7z source repo (excluding UXP): https://github.com/roytam1/boc-uxp/tree/custom * Notice: the profile prefix (i.e. parent folder names) are also changed since 2020-08-15 build, you may rename their names before using new binaries when updating from builds before 2020-08-15. -- New build of HBL-UXP for XP! Test binary: IceDove-UXP(mail) https://o.rthost.win/hbl-uxp/icedove.win32-20251225-id-656ea98-uxp-fd19819276-xpmod.7z IceApe-UXP(suite) https://o.rthost.win/hbl-uxp/iceape.win32-20251225-id-656ea98-ia-c642e3c-uxp-fd19819276-xpmod.7z source repo (excluding UXP): https://github.com/roytam1/icedove-uxp/tree/winbuild https://github.com/roytam1/iceape-uxp/tree/winbuild

The counter has not been working since maintenance in October. Perhaps simply disabled.

I have now installed fltmgr.sys build 5107 also under WinXP SP3 on my i7 desktop computer, by booting into Win10 and then copying fltmgr.sys onto the WinXP partition. fltmgr.sys build 5107 works fine on the 3.4GHz i7 desktop under WinXP SP3 and WinXP feels a little crisper The updated fltmgr.sys is a must-have for slow computers under WinXP, and a nice-to-have for WinXP on fast computers. The remaining question now is: Which build of fltmgr.sys is the best one for WinXP SP3?

Notice: upstream pushed a big ICU update, and I may need to further look at the changes to see if any new changes are needed for our old target platforms, currently no ETA for upcoming new builds.

Apparently, I'm not the only one who has noticed such abnormal delays when starting up Panda while system start: 16 minutes! That's record-breaking. Any other here observing similar issues? Until Panda fixes this bug, I will avoid using the latest version 22.03.05. When starting my Windows XP computer, I am not prepared to accept lazy compromises. The start-up process must run smoothly as I always managed in the past. Panda offers two different installers, one of which is a "legacy" one. This installer does not solve the delayed start-up problem either. All 22.0x.0x versions have start-up problems on my computer. Especially the PSANHost.exe process leads to a full utilisation of the system during computer start-up. During my tests and investigations, I have now also looked at older versions. One of these seems to run much better, with a start-up behaviour that appears almost normal. Let's see if this proves to be true over the next few days.

Indeed. I have the KB4512788 (x86 for Win2003 Server); it contains fltmgr build 6912 and all 4 kernel HALs again and also kernel. This fltmgr works in XPSP3/uSP4, but hitches even more than 5107... If this thing would work normally in XP, it is a much better experience because it isn't maimed like the XPSP3_fltmgr_build5512 is. When it works, the system feels much more robust as WinNT always used to feel when coming from / dual booting 98 and NT4 and NT5. Now XP just because of this one very low level component feels like Windows 98. But hey, it's all we've got so it'll have to be enough until someone backports a proper fltmgr for it.

FWIW, .NET FW 4.0 isn't a replacement for older .NET frameworks; 2.0/3.5/4.0 can co-exist on the same machine, and each one caters to applications targeting that specific version of .NET FW; i.e., if an app was built against 2.0, it needs 2.0 installed to run; likewise for newer apps built against 4.0... On Vista and later Windows versions, a newer 4.*.* version will overwrite a previously installed 4.*.* version of .NET FW, however this is NOT applicable to XP SP3, where only 4.0.x was made available; loyal XP users here can chime in to assist you, but from memory I recall than some feature/security updates for .NET FW 4.0 were made available at the time for XP SP3; unless the (recent) installer you linked to has those bundled ...

https://github.com/e3kskoy7wqk/Chromium-for-windows-7-REWORK/issues/7

It seems like abbodi1406 has already done that in # Office 2010 MSI Upsourcer You should try it. Link : https://mega.nz/file/LgZyCZxa#ew7SgnszJXa8lX0miZAIQk6qGQJljiRxSunc-ynaSow

I'll look into it.

New build of BOC/UXP for XP! Test binary: MailNews Win32 https://o.rthost.win/boc-uxp/mailnews.win32-20251206-40a79c75-uxp-e4afc5655b-xpmod.7z BNavigator Win32 https://o.rthost.win/boc-uxp/bnavigator.win32-20251206-40a79c75-uxp-e4afc5655b-xpmod.7z source repo (excluding UXP): https://github.com/roytam1/boc-uxp/tree/custom * Notice: the profile prefix (i.e. parent folder names) are also changed since 2020-08-15 build, you may rename their names before using new binaries when updating from builds before 2020-08-15. -- New build of HBL-UXP for XP! Test binary: IceDove-UXP(mail) https://o.rthost.win/hbl-uxp/icedove.win32-20251206-id-656ea98-uxp-e4afc5655b-xpmod.7z IceApe-UXP(suite) https://o.rthost.win/hbl-uxp/iceape.win32-20251206-id-656ea98-ia-c642e3c-uxp-e4afc5655b-xpmod.7z source repo (excluding UXP): https://github.com/roytam1/icedove-uxp/tree/winbuild https://github.com/roytam1/iceape-uxp/tree/winbuild

StartAllBack 3.9.19

Hi @maile3241! You know my installation of XP is a very old one. So in the past there was no need to install XP freshly or to reinstall and therefore no chance for me to confirm your solution relating to automatic ActiveX download. But that's what I usually do before posting. Anyway I have updated my guide and linked your solution with reference to you. As we have seen some posts above it works and that's what matters.

Of course,. I said to @Dave-H some posts above the more the better and he agreed by replying the more the merrier.

Sorry, but this is no sentence and does not make any sense. A string of one or four words has nothing to do with detailed information.

Maybe in Explorer options you have hidden system files and extensions.

@maile3241 I've checked the location of wsus3setup.inf once again. The file exists in two folders, one copy is in folder WINDOWS\SoftwareDistribution\SelfUpdate\Default\ and the other in WINDOWS\SoftwareDistribution\WebSetup\. Both files have been accessed by WU. Maybe you missed one location.