This error is an indication that the new software that was installed is using the same port that PaperVision Enterprise is trying to use. If another application is already using the port assigned to the PVE website, IIS will not be able to start the site.

To resolve this follow the steps below:

1. Open the IIS Management Console.
2. Right-click the PaperVision website and select “Properties” (select “Edit Bindings” if using IIS 7).
3. Change the TCP Port to a value that is not being used by another application or website.
4. Call IISReset from the command line.
5. The site should be running now and users can access it by specifying the new port in the URL.

Note: Changing a website’s TCP port will affect the host header as well as browser shortcuts and bookmarks.