Can I remove the Dymo Label Webservice and still use the Dymo Application?
Method 1: Unload Launch Agent.

The Dymo Label Webservice is started by a launch agent while booting (or better: logging in with a user). You should be able to simply unload the related launch agent:

sudo launchctl list | grep dymo #check if agent com.dymo.dls.webservice is loaded
sudo launchctl unload /Library/LaunchAgents/com.dymo.dls.webservice.plist


You may have to use the force switch: ... unload -w ....

Method 2: Set RunAtLoad to false.

If you are not successful you can try to change the RunAtLoad key in /Library/LaunchAgents/com.dymo.dls.webservice.plist with 

sudo nano /Library/LaunchAgents/com.dymo.dls.webservice.plist

from

&lt;key&gt;RunAtLoad&lt;/key&gt;
&lt;true/&gt;


to

&lt;key&gt;RunAtLoad&lt;/key&gt;
&lt;false/&gt;




Reboot and check if your Dymo label printer also works without the open port of the webservice.