if the software was designed for Win9x/Me, or
if it was intended for WinNT/2K/XP, but was improperly designed. Quite
simply, the installation routine for this application doesn't "know"
how to handle individual user profiles, or the application tries to
make changes to "off-limits" sections of the registry.
normally in xp you can add the program you want the limited user(s) to use to the shared folder
As Administrator,Right click START/select explore...got to
programs folder and drag the programs you want to share to
shared programs or to the user folder that needs the