Ever wanted to run an old program on your new PC but it wouldn’t install? I have.
I use a copy of Pagemaker 6.52 for summonses and all sorts of other stuff, but when I upgraded to Windows 7 64-bit, the installer program refused to run. Forget ‘run as’ – it doesn’t work. Similarly (don’t ask!) I wanted to run a copy of Smartware 3 which I last used in the 1990s!
A search led me to Microsoft’s Windows XP emulator. What a waste of time! After hours of downloading and setting up and configuration, I was left with a limited and barely usable ghost of an operating system.
VMWare looked likely, so I downloaded and installed the free ‘Player’ version.
http://www.vmware.com/products/player/

I
installed Windows XP onto it and now have multiple copies of that OS that I can use for testing purposes as well as actually using older programs. I have one copy with Office 2003 and another with Office 2007, for example, that ensure that any products I build are not ‘contaminated’ by spurious files during testing that they can run in the different environments. (I run Office 2010 on my main PC.)
I can now run Smartware …
… and any other programs that the latest and greatest will not even contemplate.