From: not.my.real@email.address   
      
   bisanfang wrote:   
      
   > On Monday, June 11, 2012 at 7:41:09 AM UTC+8, Gabor Grothendieck wrote:   
                ^^^^^^^^^^^^^   
      
   ***SIX YEARS AGO.***   
      
   >> Is there some way of finding out in a batch file if it was invoked from   
   >> a 32 bit or 64 bit cmd.exe ?  My preference is to be able to do this   
   >> without using external utilities, if possible. Thanks.   
   >   
   > I use the following command on my 64bit version of windows 10 (havn't   
   > tested on 32bit operating system), *check_process_bits.bat*:   
   >   
   > ```bat   
   > IF EXIST "%windir%\Sysnative\cmd.exe" (ECHO proc32_on_win64) ELSE ECHO   
   > proc64_on_win64 or proc32_on_win32 ```   
   [snip]   
      
   My Win10x86 install does *not* have that directory, nor does my Win7x64   
   system.   
      
   > Considering the 32-bit OS, we can use [batch file to check 64bit or   
   > 32bit OS]   
   > (https://stackoverflow.com/questions/12322308/batch-file-to-check-64bit-   
   > or-32bit-os#24590583)   
   >> ```bat   
   >> @echo OFF   
   >>   
   >> reg Query "HKLM\Hardware\Description\System\CentralProcessor\0" | find   
   >> /i "x86" > NUL && set OS=32BIT || set OS=64BIT   
   >>   
   >> if %OS%==32BIT echo This is a 32bit operating system   
   >> if %OS%==64BIT echo This is a 64bit operating system   
   >> ```   
      
   The only problem I see is the (rare?) case where Windows is running on non-   
   Intel architectures. For example, Windows 10 has an ARM edition; how would   
   you deal with that?   
      
   --   
   The approval of the dead is meaningless.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)