RS>
  >                                                Checking it with
  >  the debugger I find that DosSetFilePtr causes an exception and
  >  it doesn't execute.
  >
  > LONG lDistance = 0;
  > PULONG pNewPtr;
  > rc2 = DosSetFilePtr (hFileHandle, lDistance, FILE_END, pNewPtr);
RS>

  The reason is that your code is wrong.

  Ask yourself what the value of pNewPtr is when you make the call.

  Clue 1 :  PULONG means `pointer to unsigned long'.

  Clue 2 :  The fourth parameter to DosSetFilePtr is an *output*
            parameter.

  When writing OS/2 code, it is usually best to avoid the example
  snippets in the Control Program or PM References.  They are usually
  more confusing than enlightening.

  > JdeBP <
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