I have tried SafeSpace briefly. Overall seems good and it,s free so far. It need .NetFramework2 to install. ( I think it,s included in Vista by default?, if so the no rpoblems for Vista users). I have mainly relied on snapshots. To me it looked very similar to BufferZone( BZ), but has almost no performance issues than BZ. Use with EQS, CFP( FW mode only) and ShadowSurfer without issues. Install went without problems, was smooth. It needed a reboot. Tray icon is nice and so is the GUI. I realy liked it.