I must say that I was little dubious, when I read this thread, but I finished reading it, determined that I try this. I obtained the ntldr and NTDETECT.COM files from Windows 2003 server SP2 Enterprise and non-SP Corporate editions. I quess that there is no download link because of the copyright, but hit me with PM and I provide the link to them... Anyway, I made backup by DriveImage and measured by stopwatch the boot time - since the post screen dim to the flick of the Windows screen when the GFX nVidia card get overclocked and it is old one, so it flick with the image and one can begin use the computer. Please note I just now, temporaly, running on a VERY old machine, it is a JetWay V266B mainboard with KT266A chipset, 1G ram 2-2-2-5, overclocked to 150MHz FSB x 12.5 with AXP Barton CPU at 1875MHz and FX5600XT. On this I run Windows 2000 SP4, with disabled everything I can. I striped out every little thing I managed, so... Original Windows 2000 SP4 boot files - time 38:62 sec Windows 2003 server Corporate files - time 28:29 sec Now that is a little over 10 sec, witch obviously made me VERY happy, I was like HOLLY SH*T when I saw that for the first time. And since I type this after a scandisk and with eMule running and ICQ and Firefox and stuff - it looks like that there is no stability penalty for the nice boot time. The bottom line is, that since I start my machine in the morning, then go to breakfast and stuff, I did not really need the fast boot time... But it definitively is a great improve and for what? For nothing, just two files and that it is. I can only recommend to everyone! Sorry Dave-H that it did not work out for you. Out there the results is amazing at very least!