Answer

The version 7 Web Client Insight API service will not start and Windows Event Viewer shows the faulting module is the HTTPListener. In this case, another program may be using port 9000.

If the Insight API service won’t start and Windows event viewer is showing that the faulting module is the HTTPListener then it is likely that some other program is using port 9000, which the Insight API service needs available in order to start.

The first step in fixing this is to find the Process ID that is using port 9000. Use the following Netstat command:

netstat -ano -p tcp | findstr :9000

That will let you know what Process ID is using port 9000.
You can then search for the Process ID in Task Manager and End task.

After doing that the Insight API service can be started.

i-PRO FAQ

Why does the Insight API Service not start?

Answer

The version 7 Web Client Insight API service will not start and Windows Event Viewer shows the faulting module is the HTTPListener. In this case, another program may be using port 9000.