error with CompareDWG

Hi all, When i try to compare 2 different dwg using CompareDWG i got the message error :"compareDWG cannot display the result drawings because
the custom entity Ole2Frame cannot be resolved. Please load the appropriate application, then try again".
What is the name of the Application? I tried to load all application (.arx) in Autodesk2005 dir but nothing.
Please Help Me
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