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[haggis999]

In recent months I have been suffering from a higher frequency of the following error message.

Media Center 33 is running, but there may be a problem. Possible causes:

1. The program is also runing under a different user account.
2. Media Center 33 and Media Server are both in Windows Startup. You must remove one.
3 The program is not responding for an unknown reason.

Please try rebooting the computer. Verify that no other user accounts are running the program.

This error occurs on both my primary Windows 11 workstation and my Windows 11 laptop. In both cases, I only ever log in with one Windows user account. Rebooting does not cure the problem. I only run Media Server in Windows Startup. My only antivirus software is Microsoft Defender Antivirus.

How do I go about debugging this issue?

[Matt]

That message gets shown when the program is already running. We wait 5 seconds to see if it shuts down then show the message.

So there must be something running somewhere. Look carefully in Task Manager.

[haggis999]

I'm triggering MC from links in PowerPoint, with only one such link per slide. Right now I have the problem every time I click one of those links, even after first killing every existing JRiver entry in Task Manager.

EDIT:  I've just realised that I was clicking twice on my link, thinking that the first click was to gain focus for that PowerPoint page when running in Presenter View. MC was actually running my selected video in the background. It normally appears in front of the relevant slide. I'm not quite sure why that's failing to work at present.

EDIT 2:  It's now failing every time even with a single click on my link in PowerPoint, all MC references first deleted from Task Manager and without MC playing the video in the background after clicking the link.

[JimH]

Reboot.  Restart.

[haggis999]

Reboot.  Restart.

As before, that didn't resolve my problem.

However, I think I have now found a fix. Most of my PowerPoint media links invoke batch files like the example shown below, but the ones causing me a problem omitted the MC33.exe /Clear line of code. I had always assumed that this line was not really necessary when you subsequently use the /PlayReplace command, but that assumption appears to be incorrect. 

Code: [Select]

@echo off
MC33.exe /Clear
MC33.exe /Mode Display
MC33.exe /PlayReplace "C:\xxxxxxxx\My Video 1.mkv"
MC33.exe /PlayReplace "C:\xxxxxxxx\My Video 2.mkv"
MC33.exe /MCC 10078,1