Can't let go of Windows 98 for compatibility reasons? Microsoft's Virtual PC can now be downloaded free. So what does it do?
Microsoft Virtual PC 2004 allows users to conveniently run multiple operating systems on a single computer. Users can switch operating systems as easily as they switch applications—instantly, with a mouse click. As a migration tool, Virtual PC provides a cost-effective safety net for certain employees to run critical legacy applications on an interim basis while you continue migrating to a new operating system. Virtual PC also helps companies more rapidly develop, test, support, and deploy applications.
To add a virtual machine with the operating system of your choice, you need the original Windows or DOS installation disks. If you own any Windows games that won't run in XP or Vista, this is more convenient than dual booting. DOSBox, Compatibility Mode and a few fan-made patches are enough to get the Wing Commander games running on a modern computer, however, and may be easier for novice users to figure out.