BufferZone Pro sandboxing software now a totally free download
But, wait -- BufferZone still doesn't support x64, and maybe you're thinking that there will be a paid version once a 64-bit Windows version arrives. Not so, Trustware's Efrat Schneider told me in an email: "The product will continue to be free," he replied.
If you're looking for a free way to tighten up security on your Windows system, BufferZone is an excellent app for the job. We'll let you know when the 64-bit version becomes available.