In many cases, the game will just work. Most freeware titles from the late 2000s are surprisingly resilient. If it doesn't launch immediately, try running the .exe file in Compatibility Mode . Right-click the file, go to "Properties," then the "Compatibility" tab. You can run the game in compatibility mode for Windows 98 or Windows XP (Service Pack 2) , which often solves 90% of launch problems.