Detect whether current Windows version is 32 bit or 64 bit

Question

Believe it or not, my installer is so old that it doesn\'t have an option to detect the 64-bit version of Windows.

Is there a Windows DLL call or (even better) an en

Answer 1

I tested the following batch file on Windows 7 x64/x86 and Windows XP x86 and it's fine, but I haven't tried Windows XP x64 yet, but this will probably work:

If Defined ProgramW6432 (Do x64 stuff or end if you are aiming for x86) else (Do x86 stuff or end if you are aiming for x64)