There are two, Wine (Windows Emulator) and VMWare (Virtual Machine). Configuring Wine takes a bit of time and not everything will run under it. Some things seem to be dependant on Windows Lib files, I can't get MS Digital Image suite to work with it. However, a program which I used in all versions of Windows works with no problem. I bought it nearly 18 years ago, I wonder how the programmers made it proof against MS Windows upgrades?
