License Key Errors

If you are having difficulty loading a license key, and see an error mentioning GAC_MSIL or EDM.License.dll:

Try going to C:\Windows\Microsoft.NET\assembly\GAC_MSIL\EDM.License and removing all of the subfolders underneath.

Then re-install EDMTestingSetup.exe and re-open EDM.

Where are my license keys located?

Note: the license keys for the installer are located under:

`C:\ProgramData\Crystal Instruments\EDMLicense`

"Cannot load license key file"

If you encounter the “Cannot load license key file” error in the installer, confirm the followings:

Microsoft Visual C++ 2015-2022 Redistributable has been installed. (Check in Control Panel > Programs > Programs and features)

Check if there is no `Common` or `EDM.License` folder

If the above two conditions are true, try running .NET framework repair tool: https://www.microsoft.com/en-us/download/confirmation.aspx?id=30135