This has probably been asked before..

[Racing Green]

How do i get the installer for alpha centauri to work under win xp?

 

[5cats]

PAtches? Trial and error?
Those worked for me, eventually...
Also searching the forum for specific answers helps.

 

[Ultima Dragoon]

I don't know. Try manually opening the .exe file from the disk if the auto-install doesn't come up.