From: jj4public@vfemail.net   
      
   On Sun, 21 Oct 2018 11:31:17 -0400, Tom Del Rosso wrote:   
   > JJ wrote:   
   >> On Sun, 21 Oct 2018 16:43:20 +0700, JJ wrote:   
   >>>   
   >>> Try below tool. It's a DEBUG script which will create KEYSTATE.COM.   
   >>> The tool will report the state of the SHIFT, CRTL, and ALT keys in   
   >>> its exit code (errorlevel).   
   >>   
   >> Sorry, forgot to mention that the tool is a DOS program. It will not   
   >> work on 64-bit Windows without any emulator/virtualizator software   
   >> such as DosBox or VirtualBox.   
   >   
   > Yeah, I wrote one like that too, but it didn't even work in XP.  DOS   
   > utils run in XP but the keyboard flags in the BIOS data area probably   
   > never worked in any version of NT.   
      
   Hmm... indeed.   
      
   However, if I run the batch under COMMAND.COM rather than CMD.EXE, it works   
   fine. So, my guess is a problem on the exit code part. i.e. passing the   
   program exit code from DOS system to Windows system.   
      
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