Windows XP Pro SP-3 + all updates Bufferzone Pro (whatever is the latest version available today) Returnil (whatever is the latest version available today) I did a search on "bufferzone" but got no hits. I think Bufferzone Pro went freeware back in August. I had used GeSWall in the past and was considering looking at it again since it went up a minor version (2.8.x to 2.9.x); however, after some research, either GeSWall is dead or nearly so. GentleSecurity sold off their LeakWall to BeyondTrust so they lost that revenue source (but, of course, got the proceeds from the sale of LeakWall). There never seemed a large market for the payware version of GeSWall compared to the number of instances of their freeware version (that only supports web browsers). Updates were always far between, like a year, or more. It just doesn't seem an actively supported product so I figured instead to try Bufferzone Pro, especially now that it's free. However, I'm wondering what might be the consequences of mixing Bufferzone with Returnil. GeSWall and Bufferzone are more about policy enforcement than sandboxing. They will use an isolation environment (akin to a sandbox) for untrusted downloaded programs but most of what they do seems to be regulating what behavior is allowed per their own policies (not Windows policies). When there was a problem getting Java applets to run, a policy in GeSWall had to get added to all for the "js" pipe. Fixes are often made as changes to their policies. So I'm wondering if a policy enforcer, like Bufferzone, would have problems working with the virtual disk write protection in Returnil. --- UPDATE --- Oops, meant to post this in the General discussion forum. Maybe a moderator could move it over there (and delete this update portion of this post).