I was lumping virtualization and emulation under the same umbrella. I know there's a difference between the two, I was just doing the shorthand for Douglas.
You can still do actual emulation under PowerPC-based Macs with the right software, though, right?
Understood, but by doing so you lump the general slowness of emulation together with virtualization. Ignoring the technical aspect, it's still good to know there is a difference, and virtualization is what you want if you can, including support for it in hardware.
PowerPC Macs had Virtual PC 7 by Microsoft (they bought Connectix a few years back), however finding a copy now is next to impossible, and it doesn't work under Leopard. This is an emulator, and a slow one at that. It's not worth the hassle of even using at this point, but based on the comments, it sounds like the Mac in question is an Intel based one.
Doug, you can confirm this for certain by going to the Apple menu in the upper left, and selecting About this Mac. Processor will be listed on the screen that pops up, and it's also helpful to know what Mac OS version it is.