Port 8080 remains occupied

[Gnirmo]

After using SABnzb version0.2.3 for 2 years I changed a few month ago to version 0.4.6
and removed the old version. However., I could not use port 8080 anymore; it was still occupied by another program, so I cganged in the ini file to port 8081 and new version worked fine again.
Recently I changed to version 0.4.7 and now port 8081 was also occupied, so I changed to port 8082 wit positive result.
Question: how can I clear ports 8080 and 8081, because I think they are still occupied by the previous versions while these do not exist anymore?

[shypike]

You are sure that old  SABnzbd progams aren't still running?
You did reboot?

You could try the free "NetLimiter 2 Monitor" tool to check which app is listening on these ports.
http://www.netlimiter.com/download.php

[lithiumc]

I can verify this issue, the problem on exist with port 8080, I can sabnzbd with any other port with out issue. I have also verified that the port is in fact free and not in use with NetLimiter.
Furthermore I also ran microapache listening on port 8080 and it had no problem occupying the port.

PS My platform is windows vista ultimate.