Allow simultaneous 32-bit and 64-bit installs of shell extension
Created originally on Bitbucket by Scott Palmer
I run 64-bit Windows 7 and the 64-bit install for TortoiseHG works fine. However I hate Windows Explorer, so I often run FreeCommander as an alternative (http://www.freecommander.com/ ). It is a 32-bit application.
FreeCommander handles the shell extensions for explorer as well, so on 32-bit windows I can use TortoiseHG with FreeCommander, but on 64-bit Windows I can't install both the 64-bit TortoiseHG (for Windows Explorer) and the 32-bit version (for FreeCommander) at the same time.
Another alternative to allowing both installs is to just include the 32-bit shell extension hooks with the 64-bit install. Just in case.
Note that this also affects File Dialogs in 32-bit apps running on 64-bit Windows. Without the 32-bit shell extension the icon overlays etc. aren't shown in the file dialogs (as they are for 32-bit windows)