It allows several operating systems to run on same machine:
heres a demo of Virtual Box (also free software), running XP as VM in linux
http://www.youtube.com/watch?v=01OqyzEyV9M&feature=related
here is a more in depth explanation of virtualization, geared towards enterprise
datacenter management:
http://download3.vmware.com/demos/esxi/VMware_ESXi.html
Yes , it has an annoying salespitch, but it does explain the concept of virtualization very well, you can get the esxi package free (not their VMInfrastructure manager, so its not like i am peddling vmware products)
There are many packages out there , often free as well:
- Virtual PC2007, microsoft, free
- Virtual Box, Sun, free
You should give them a try. Run your favorite .ISO files in a protected sandbox insiode your machine and test your scripts ...
AHK Script running on the host OS looks something like this:
Code:
Winactivate My WindowsXP VM
send ^{esc} ; opens the start button in the VM window
send R{enter}C:\mygames\whoisgameguard\game.exe{enter} ; run your game from the virtual harddisk
...your in-gameclicks..etc
However Esxi does not have to run in another OS so it won't be slowed down by it and the hypervisor only needs 32 mb for itself.