> Unless the parameters to CreateFile are somehow being passed
> differently by the same source code, CreateFile is definitely behaving
> differently.
>
> While I doubt that it will make any difference, I'll try adding a few
> DoEvents calls before and after the CreateFile call. (I'll really be
> scratching my head if that fixes it.)

        Whenever I've got weirdness like that I suspect dll issues. An easy way to
debug that is to use a tool like filemon, it'll list every file that your
app tries to access. Compare a run with the VB environment versus a run
standalone, you will probably see a different DLL being called. TTYL

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