Answers to the questions from Yusaf:
- We have reproduced this problem on 3 computers.
- We are still working on finding a pattern. A couple of possible, but unverified causes: other applications are open; program variations have been used that incorporate delays.
- No error messages. When the DLL is called by Delphi, the program just hangs and never exits.
- I have not tried running this with a built-in example. Can you suggest an example to use? It should be somewhat complex. I'm suspecting that there are some shared resource conflicts causing the problem. To see this, I think that the example would have to have similar complexities.
Thanks for any helps.