Hi,

I am afraid I am not able to find the CompositeModuleCatalog class in Prism 2 library. Could you tell me where is it located?

In addition, I found an implementation of a CompositeModuleCatalog which inherits of ModuleCatalog, but this would not be part of the Prism Library.

You would be able to see the Prism changes from 2 to 4.1 and what considerations you should keep in mind in order to Upgrade your solution in the following MSDNPrism Guide section:

• Upgrading from Prism 2.x
  

Regards.
Gabriel Ostrowsky
https://blogs.southworks.net/gostrowsky