I use Sandboxie too. I'm bummed I can't use it on Vista64, but at least it works on my 32 bit Windows 7. They came out with another build of Returnil Oct 12. But, to be honest, I'm waiting for some early adopters to be the guinea pigs. Besides, I'm not all that thrilled about recovery mechanisms that rely on a reboot. Seems like if a nasty gets through it's going to try to get at the MBR or delete your partition or booting info. On 64 bit systems I rely on frequent image backups. Something like Sandboxie would be ideal though.