Hi,
It should work without problems in X64 Windows.
the defrag memory module should be instant, but there is no guarantee that a significant gain in memory is obtained.
The best way to test the defrag module is to open some applications, then close them, and try to defrag. A drop in memory should be visible in MemInfo own tray value (you can also open the Windows Task Manager to confirm)
Let me know if this helped
André Santos Carthago Software Support
http://www.carthagosoft.net