If you run 64 bit Vista or 7 you will have the 64 bit version of Objectdock installed, Stardock's installers detected your system OS and install the version for 32 bit on 32 bit and 64 bit on 64 bit. It is not just a 64 bit compatible version it is a proper 64 bit version. If you go to the Objectdock folder you will see that the .exe is 64 bit.