-=> Quoting Mike Bilow to Jonathan De Boyne Pollard <=-

 MB> I really never thought about it.  I developed MUTEX so long ago that
 MB> it antedates OS/2 Warp, and is actually a 16-bit program, althouh I
 MB> have modified it by adding a few command line switches as recently as
 MB> a year ago.  I seem to recall that COMSPEC was the DOS flavor and
 MB> OS2_SHELL was the OS/2 flavor.  It never occurred to me to revisit the
 MB> question. 

    If it makes you feel any better, I agree with you. OS/2 set me up with 
OS2_SHELL pointing to CMD.EXE and COMSPEC pointing to COMMAND.COM. This leads 
me to believe that your assumption is correct. That and the fact that a number 
of OS/2 doors I have, attempt to execute "comspec" which is not
defined in an 
OS/2 session which effectivley results in no OS shell available. (Both 
variables are in my config.sys). It would seem that IBM's intention was to 
differentiate the two variables for the two platforms.

Dave...

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