This is called vmware and it allows you to run virtual PCs. You can have a copy of WinMe or other operating systems running under XP.
It might solve some game compatibility problems you may be experiencing. Worth a try anyway if you got any issues.
Rommy could get that person with a dodgy version of windows to try it. THey may be able to run Ragnarok through it.
anyway heres a link.
http://www.vmware.com