Since Windows is a system belonging to one company – and a currently active, giant company at that, there are legal issues involved in running Windows programs on non-Windows systems.
Windows emulators for Linux split into two groups: those which need a Windows licence and those which don’t. As we’ll show later on, there are very fewthat don’t need one, and they tend to be much more limited.
If you’ve just switched to Vista, chances are you already have a valid Windows licence on your machine. If you’ve bought a new machine just for Linux, check the details of any copies of Windows you already have and see if the licence is legally valid to move to another machine.
If you don’t have a copy of Windows you will need to get one to use most Linux emulators. You may be able to save cash by getting an older edition, or a basic rather than professional user version, but make sure it’s compatible with the programs you want to run in Linux.