I have installed v 2.0.1.302 (the latest free version) on my personal machine, which hosts email and web for my personal domain.

In this version, when SpamFilter is created as a service and the service is started, the interface suddenly disappears and is not minimized to the taskbar.  Furthermore, when SpamFilter.exe is re-executed, a duplicate copy is apparently started, as the error message "Could not bind socket. Address and port are already in use" appears.  (Note, at this point, the version numbers do not display on the interface either).

In the previous version I used, v 1.2.0.212, the interface came up automatically upon reboot, and "closing" the interface would minimize it to the clock area of the taskbar.

Any ideas on the nature this problem and how to fix it?

--Clator

Terminal Services must be the problem.  The box has been moved off-site and I'm now using TS to access the box.

Is there any workaround to the TS problem?

As Bill correctly pointed out, if you use Win2K3 his solution will work. Otherwise, from a similar thread:

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Please note that using Windows 2000 you will not be able to Terminal Service in to the server and see the GUI. This is because Terminal Services in Windows 2000 (MS fixed this ini Windows 2003) does not let you have access to the real console. You can use PCAnywhere, McAfee's Remote Desktop, DameWare utilities, or anything else that lets you remote in a server and see the actual screen to do so.
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Roberto F.
LogSat Software