ScummVM: it's a kind of emulator for some games based on Scumm system developed in LucasArts graphic adventures originally, and used for other games like Beneath a Steel Sky, Monkey Island, Maniac Mansion, Day of the Tentacle...etc
This games, don't work usually in Windows XP systems, but with this emulator, you can execute on Windows XP fine...
Your need have 3 things:
ScummVM
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http://www.scummvm.org/ScummVM Front End (optional) allow you configurate the various reescaling and filter modes
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well...as the same way of DOSBox Front End...this other FrontEnd acts same way for ScummVM emulator
http://www.cyberscope-station.com/frikidune/abbandonwarePC/scummvm_frontened_by_Shed.zip-------------------------------------------------------------------------------------------------------------------------
and the DOS games mentioned....that can found at Abbandonware websites and resources on network