In order to help our customers (and their users) fully transition from Skype for Business to Microsoft Teams, I’ve updated the Disable-SkypePlugin script that I published back in 2020 and put it on the PowerShell Gallery.
As we encounter more and more customers still working remotely, helping enable them use the most modern tools (like Microsoft Teams) is critically important. There are a number of places that the Skype plugin can be enabled (depending on the version of Windows, the version of Skype for Business, and the versions and install types of Office).
The registry values that I manipulate are outlined in https://support.microsoft.com/en-us/help/3097122/skype-meeting-control-is-not-displayed-on-outlook-2016 (if you’re interested).
To get a downloadable version of the script that you can push out via Group Policy or another automation platform, go check it out on the PS Gallery at: https://www.powershellgallery.com/packages/Disable-SkypePlugin/