Hi Slawomir
The registry key value should be set to the following:
"C:Program FilesANSYS Incv195scdmspaceclaim.exe" "%1" "/USERUNNINGSPACECLAIM=true" /UseLicenseMode=true
/UseLicenseMode=true is necessary to make Discovery SpaceClaim look for the subscription license. Without that set it will look for a floating license, which is why they get the error in the image you submitted.
Please let me know if this resolves your issue.
You are navigating away from the AIS Discovery experience