Windows service grabbing port 8443

I use a third party application for mobile devices on win 2003. It uses port 8443, when I restart my server Windows keeps grabbing this port so my service can't run on it. The process using the port is listed as system and description is NT kernel and system. IIS is not installed and also apache is not installed as I have seen a lot of posts on those services taking the port. How can I reclaim the port?
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Mohammed KhawajaManager - Infrastructure:  Information TechnologyCommented:
Could you run netstat -aon -b | find "8443" and see what EXE is using it.
Sid_FAuthor Commented:
Apologies the OS is 2008R2. The above command gives me the same result. I know what is using the port but I guess the question is why is it using the port. I have installed the hotfix in article and can see the port 8443 is in the list of reserved ports so why is the OS using it
Sid_FAuthor Commented:
Ok found out the application runs as a service and because of this it displays that 8443 is running as system as oppose to the application name. The problem was to do with the application not using this properly but its with developers to identify further. thanks issue resolved

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Windows Server 2003

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