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Anonymous
in reply to: Michael.Navara

It show up error as follow:

 

Unable to cast COM object of type 'Inventor._DocumentClass' to interface type 'Inventor.DrawingDocument'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{29F0D467-C114-11D2-B77F-0060B0F159EF}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).