Problem with advertised COM information (Darwin descriptors)
There are a 3 different monitoring methods for COM extraction, and we can alter which one Installshield uses from a registry key.
This might give you a different result in your extracted COM data, so it might be worth a try.
Information on how to alter this can be found in the following document under the title: "Improvements for COM Extraction"
In addition to those methods which relies on registry key,you can give a try with Self-registration method as well.
You can find self register option on right clicking properties of file added under Files and Folders view