"Run applications in XP, 2000, NT, 98, 95, 3.1 – even DOS, OS/2, NetWare, or Linux, simultaneously on the same PC, with no need to reboot."
http://www.vmware.com/products/desktop/ws_features.html#new32 "VMware Workstation is virtual machine software for technical professionals. It lets you run multiple versions of operating systems simultaneously on single computer. Quit wasting time configuring hardware, installing software, rebooting/reconfiguring systems. Spend more time developing, testing, and deploying applications and delivering support. "