Skip to main content

Official Support Articles

Search or browse our knowledge base to find answers to your questions ranging from account questions to troubleshooting error messages. The content is curated and updated by our global Support team

Skip the ticket, Chat with Qlik Support instead for instant assistance.

How to enable the Interactive Service Detection to troubleshoot NPrinting Server issues

Showing results for 
Search instead for 
Did you mean: 
Digital Support
Digital Support

How to enable the Interactive Service Detection to troubleshoot NPrinting Server issues

Both NPrinting 16 Server and NPrinting 17 Engine runs as a separate service in session 0. Having access to this session gives the possibility to see QlikView Desktop opened by NPrinting. This is a great help to understand the cause of many issues especially if they are due to a connection problem.


 The Interactive Service Detection service is disabled by default on many machines.



Here are the instructions to start the Interactive Service Detection:

1. Open the task manager, go to "Services" in the ribbon bar and click on "Services..." in the lower right corner. The Services window opens.

User-added image

2. Look for the "Interactive Service Detection". Right click on it and click on start.
If you get an error message saying that the service cannot be start, go to point 3. If the service starts, go to point 5. the registry key (Browse to c:\Windows\regedit.exe)

4. Look for the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows\NoInteractiveServices. Right click on it, choose "Modify" and set the value to 0.

User-added image

5. Restart the Interactive service detection as in point 2.

6. Go to NPrinting and start the execution of a task.

7. The Service Detection icon appears in the lower bar of your machine. Click on it.

8. Click on "Show message".

User-added image

You will enter session 0 and see QlikView working there.
To go out the session you can click on "Return now".


Labels (1)
Version history
Last update:
‎2021-09-09 04:42 AM
Updated by: