Hi Rod,

You can't wait indefinitely. Instead you need to wait for a reasonable time (500ms to 3 sec), perform a DOEVENTS and continue to wait. This gives VFP time to process Windows message. Something like this:

Do While not glQuit
  If WaitForSingleObject(m.lnHandle,500) == WAIT_OBJECT_0
    * do something
  Endif
  DoEvents
Enddo

Set glQuit in the ON SHUTDOWN procedure. If your application needs to accept input, you should rather use MsgWaitForMultipleObjects(). Be aware that DOEVENTS isn't available in DLL servers.

--
Christof