RC> "Exception = 80010001 occurred at EIP = 1a67b."

 PF> If you look 80010001 up (it's an OS/2 Exception,  not a 

   Where?

 PF> compiler error),you'll see that it is "unable to grow 
 PF> stack".

 PF> As a rule,  you're supposed to have 8k bytes of free 
 PF> stack before calling any OS/2 function.  How big of a 
 PF> stack are you creating your thread with?

   The bare minimum.  I think that would probably have been the cause of my
problem, but as I've totally re-written my code since then I can't really
test the theory.  In future I'll use a minimum of at least 16K more than I
need to avoid this sort of problem.
   Anyway this still doesn't explain why my program worked!  Surely if it
got an exception it should have been killed (I didn't have an exception
handler then)!


   Thanks for the help, cya.


--- Maximus/2 2.01wb