I came across this application, somewhat similar to Sandboxie. It's a paid version, but it appears that after the trial period ends, it will become a limited free version. -http://www.winquota.com/wg/index.html It seems interesting; not sure how up-to-date it is, though. Probably it dates from 2009, and it doesn't support Windows 7, only up to Vista. I also didn't find any download links? Most likely a dead project. I do like the concept of the application, though. I like Sandboxie... doh... lol This feature Provide separation on per user/per group basis;, is actually something I'd like to see in Sandboxie, and hopefully it will be done in a near future. Anyway, has anyone ever heard of it?