I am having an issue with customers that upgraded from CS3
to CS5.5. They are receiving an exception from an application that uses indesign interop to import designs into a database for interactive display on a web site. The application was working fine with CS3 and does work properly with CS5.5 provided that you upgraded from CS5 or are using the trial version of CS5.5 after installing, and uninstalling CS5. Here is the test of the exception:
unable to cast COM object of type "InDesign.ApplicationClass" to interface type "InDesign_Application". This operation failed becasue the query interface call on the COM component for the interface with IID 'xxx' failed due to the following error: No such interface supported.
What changed? I cannot find any information on this on the adobe site or anywhere else.