Before diving into the ?how?? question, some of you might be asking ?Why would you want to run a 32-bit shell on a 64-bit OS?? One of the first things many users notice about Windows XP and 2003 x64 Editions is that they do not support any kind of shell integration (Deskbars, Toolbars, Context-menu handlers like WinRAR, etc). The reason for this is that 64-bit processes cannot communicate with 32-bit processes or libraries.

Extended64