I am sorry I can not be of any help, If compatibility modes don't work, I would need to mess with the executable, find instructions that are not allowed and replace them. I do not know if that can be done actually...**
With the source code it would be quite easy I guess.**
The news from that Mike guy having the source... Indeed if he wanted to fix the XP problem he should have done so within weeks probably.**
The bitmap brothers website seems to have nothing new since 2002.
But currently I also feel I should just be content with the game running fine in windows 98se, It is neat they released the 95 version as it is. XP got several classic games in trouble, and vista will probably fuck up many more. Fans of Z 95 should consider dual booting 98 or something.
**I am writing this with just a modest experience in coding games and hacking games.