Some programs will not work on the NT core. If the app did not run on Win98, its less likely it would work under XP.
Changes in dll's from win95 to 98 thru XP is probably the problem.
Simple solution, try a different program.
You can find some freebies in this thread for Chess games.
http://www.oldversion.com/talk/index.php?a...t=1699&hl=chess