Most Windows folks are using SquareView, which is fine program (and also free).  However, I’ve seen some renewed interest lately in a Windows version of SquareDesk!  The latest Windows version of SquareDesk which can be found below is version 0.9.1, and it has not kept up with changes and bug fixes made to the Mac version (which is on v0.9.5).  If there’s enough interest, I’ll see if I can bring the Windows version more up-to-date in the near future.  In the mean time, try out version 0.9.1 !