1. You would get the .iso files from Microsoft. Sence Microsoft removed them for out-of-date crap. People put them on youtube for other people could download.
2. You don't need to pay for the program, theres no "Pay now" or "Trial Version".
3. Virtual PC is still alive, healthy and running. Downloadable on Microsoft.
4. VirtualBox has more Systems than Virtual PC. Virtual PC only works with Microsoft operating systems.
EDIT:
DoublePoast.
The essentials ISO has the drivers. Learn more about virtualization before posting this kind of stuff.
Whats the damage for posting what Blockland Forums looks like in Windws 2000? I dont see a fault.