Troubleshooting MATLAB Plugin Detection Issues
Scenarios
I installed MATLAB, why does DMMS.R show the MATLAB plugin disabled?
We have recently been working with the DMMS.R. simulator and noticed that the Matlab plugins are disabled. The manual says that the DMMS.R software would automatically detect the most recent version of Matlab to use the plugins. Do you know how I can fix this?
Why is this happening?
There can be a few reasons why DMMS.R might not detect MATLAB correctly, even if it’s installed. If DMMS.R is unable to detect MATLAB, that would result in a “MATLAB Plugin is disabled” message within the “About” window. In this case, DMMS cannot support MATLAB features such as executing feedback control plugins for treatment or saving signal outputs as the MATLAB data format.

What can I do to fix it?
- Ensure you have the latest version of DMMS.R. Version 1.3.1 or later is required for this fix to be effective.
- Restore MATLAB Server Registration:
- Run Command Prompt (CMD.exe) as an administrator.
- Navigate to the MATLAB root folder. For example, if MATLAB is installed in the default location, type:
cd "C:\Program Files\MATLAB\R2024a"
(Replace “R2024a” with your actual MATLAB version if different). - Run the following command in the Command Prompt window:
matlab -batch "comserver('register','User','all')
- Run Command Prompt (CMD.exe) as an administrator.
- Restart DMMS.R
After following these steps, the “About” window in DMMS.R should now display “MATLAB Plugin is enabled.”

If you continue to experience issues after following these steps, please contact our support for further assistance.