http://icoresoftware.com/ Maybe I shouldn't say 'Wow' just yet. I've only been playing with it for about half an hour, but I'm liking it - other than for a very, very slight hit on my aging system, xp pro sp2 512RAM The best way to explain it is, if you try it be prepared for a shock. I downloaded and installed it, and my screen went black, but only for a few seconds. You're then given a several choices. I picked Internet, and it began to setup and, when done (a couple of minutes) I got my desktop back, the old desktop with the nice green field, and a balloon popped up at the bottom asking if I wanted a tour of XP. I don't know if I believe all the hype about stopping all malware, etc. Other than my Powershadow, now dead and gone, this sucker looks like the best alternative I've found for playing with non-dangerous programs, without loading my box with leftover junk. Just use it and, when you don't want it, delete and it's gone. I can't comment yet on software that needs a reboot. I'll be trying it, though, to see - maybe tomorrow. *edit* icore works with xp only up through 2003. It will not run on Vista sp1. I tried to install it on my Vista laptop. Also, although it brings quite a bit of my software over, it won't recognize my printer. There is a shared folder thing, though, and I might try to see if I can get the printer into shared folder. OR, just run the printer software in virtual to see if it'll work. The printer is showing in Control Panel, just isn't being read. Also, software installed in virtual does remain and work after reboot. I downloaded a program last night, installed it this morning, rebooted and it's functioning nicely. The downside, reboots take 3+ minutes before the virtual desktops initialize and let you in. Regular desktop can be accessed normally.