>>>Yes EXACTLY the same program with the same smtp server hardcoded in it. It is exactly the same program just running in separate directories with different wwipstuff versions. I am not sure about the restriction on the smtp. All I know is that it works with the old wwipstuff.dll + with outlook express with the same smpt server indicated.
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>>Both were running on the same server?
>Both are on the same machine (NT 2000 professional) that is connected to internet via cable-modem.

Also, some SMTP servers are set to reject messages unless you pick up messages first (typical mail client behaviour). When my ISP tightened their security this way, it broke one of my applications.