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Class does not support Automation or does not support expected interface

Either the class you specified in the GetObject or CreateObject function call has not exposed a programmability interface, or you changed a project from .dll to .exe, or vice versa.

To correct this error

  1. Check the documentation of the application that created the object for limitations on the use of automation with this class of object.

  2. If you changed a project from .dll to .exe or vice versa, you must manually unregister the old .dll or .exe.

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