Tricks of testing 32 and 64 bit version of an app

what I do is having 2 exe's in seperate folders eg C:\32exe\foo.exe and C:\64exe\foo.exe
(once you mapp with foo.exe aliases will contains Aliases.foo.frmWindo... too cumbersome to convert that to Aliases.foo32.frmWindo...)
in the tested app I gives two names eg foo32 and foo64
so you can call TestedApps.foo32.Run()
but mappings are always with Aliases.foo.frmWindo... where I hv mapped such a way, everymappings are common for 32 and 64 (you can use conditional mappings and *)
I run same test one after other for both applications.

Assuming that no changes between 32 and 64 it sould be OK (you hav to consult your dev team)

TC will recognized what is 32 and 64. see this you may use this to make sure what is running.

yes conditional mapping is optional more details

good to use handling if  there are object property deferences in two versions