[MrZebra]

Ok, but how would I have it run my batch file?

Change that value to C:\substdrv.bat and at the end of substdrv.bat load logonui.exe?

In case that fails, that would make my windows unbootable, what file do I need to backup (And restore booted in Safe Mode/Command Prompt Only if needed) I know in Win9x, the registry is in SYSTEM.DAT and USER.DAT but did that change in XP?

I read on my many searches on the matter that a program called ResHack could be used to modify logonui.exe but it mainly mentionned changing bitmaps and colors. Can this utility be used to make it run some commands too?

My other leads as to a solution (Have yet to try) would be to find a way to run this as a service or put all my startup programs in that batch file.

Ex: instead of putting a shortcut for Pegasus Mail in the Startup folder, I would but this batch file that would run all the SUBST commands and then start Pegasus Mail (And then, all other programs that are running off the U: drive at startup) But I would like to avoid doing that if possible.