Batch to detect if system is a 32-bit or 64-bit

Question

Does anybody know how to create a batch file that can shell one program if its a 64-bit system or shell another if its a 32-bit system?

Answer 1

All batch up there not work in my Windows 8 x64.

Following work with me :

@cd %programfiles(x86)%\

@if %ERRORLEVEL% == 0 (echo x64&&pause)

@if %ERRORLEVEL% == 1 (echo x86&&pause)