[SOLVED] Determine if program was built with AnyCPU

Determine if program was built with AnyCPU

If it is built in "any cpu", it will show up as 32bit in dumpbin headers.

I would like to know how I can tell a regular 32-bit program from an AnyCPU program. I would prefer to do this from the command line if possible. I tried

dumpbin YourProgram.exe /headers

on a program of each type, but could not tell them apart in this way.

Solution

Compare these two

PS > Start-Process -PassThru chocolatey.exe | Get-Process -Module

   Size(K) ModuleName
   ------- ----------
        40 chocolatey.exe
      1700 ntdll.dll
       444 MSCOREE.DLL
      1148 KERNEL32.dll
       432 KERNELBASE.dll

PS > Start-Process -PassThru firefox.exe | Get-Process -Module

   Size(K) ModuleName
   ------- ----------
       272 firefox.exe
      1700 ntdll.dll
       252 wow64.dll
       368 wow64win.dll
        32 wow64cpu.dll

So if you see wow64.dll then it is 32-bit, otherwise the program is 64-bit capable.