Hi,
Could you please look into Windows Event Log (Application bin) and see if there are any error entries there related to UltiDev Cassini? If you are getting "COM object with CLSID {72C24DD5-D70A-438B-8A42-98424B88AFB8} is either not valid or not registered" error, please follow the steps described in
this article. If not, please send us you event log entries related to the issue.
Best regards,
UltiDev Team.
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