Serpent/Mypal 68 on Windows XP SP1 (and older Windows versions?)

[Uncle Captain]

I finally managed to get Serpent/Mypal 68 to work on Windows XP SP1 (and also SP2).

Notes

kernelxp.dll stays in the "mypal" and "basilisk" directories after patching, or else it will NOT work.

mypal68-xpsp1-code.txt serpent-xpsp1-code.txt

Edited 19 hours ago by Uncle Captain
Added note.

[j7n]

There was a Corkami Trampoline DLL for running applications on SP1 (but not those that require SP3 with GetLogicalProcessor... ). I used it for a long time. But today it's time to reinstall a later version of XP/Server2003 if the PC is fast enough to load these web browsers. SP1 was good for like 256 MB of RAM or less.

[Uncle Captain]

I used roytam1's kernelxp.dll to get it to work. I used 4GB of RAM for performance on all Windows XP versions.

Edited Saturday at 12:32 AM by Uncle Captain
typo

[j7n]

Another issue that may pop on XP SP1 systems is an incompatibility with an embedded XML "manifest" in executable files. This manifest says that program works with Windows version X,Y,Z and if it requires admin rights. With a new manifest containing a lot of things, Windows XP SP1 may BSOD. This can be solved by copying a later version of sxs.dll (KB921337) into the system directory.

[Uncle Captain]

I did get Mypal 68 to work on XP RTM by installing the KB921337 update (to tweak as SP2 with CSDVersion set to 200), it is startable, but like Firefox 52 and Serpent, the stability of running these modern web applications (especially the ones patched with kernelxp.dll) on Windows XP RTM can get unstable after a while as it freezes or crashes with c0000005 (Access Violation) error at address 71ad1020. 

Can somebody try to manage to fix instabilities in what's causing Mypal 68's stability on Windows XP RTM to shake?

P.S.: I used Mypal 68 on Windows XP SP1 and no instabilities occurred

Edited Saturday at 03:28 AM by Uncle Captain

[jumper]

On 7/3/2025 at 10:11 PM, Uncle Captain said:

concrt140.dll - Change function from GetLogicalProcessorInformation to GetStdHandle

As a failure stub, the number of parameters (1, not 2) don't match and it will never return FALSE as needed.

Try FindNextFileA instead.