if you have got the windows 98 cd,goto control panel,add and remove programs, add and remove windows components, double click accesseries/games and remove freecell, and then add it again see if that helps
start-run and type "msconfig" and deselect everything but explorer and
systray and then try opening freecell. I found out that solitaire did
not work either and gave a different error. Mine sweeper worked with no
problems. If nothing works, try opening freecell after booting in safe
Let us know what happens.
if you have MS
Office start up program disable that and try freecell