DOSBox, not a DOS box. It is an open source project that emulates an entire DOS machine. It is what VU shipped the new collections with to make them "XP compatible", though with an older version. There is almost no Sierra DOS game that will not easily run in DOSBox, windowed or full screen. Games can be launched in DOSBox from a single Windows shortcut. It has great sound emulation and can be used with an MT-32. DOSBox has improved so much over the last couple of years that you can now even install Windows 3x in it to play the earlier Sierra Windows only games in it.