You can add external resources, such as assemblies, Progress procedure library files, and path entries, to the Class Browser and view their type information. The assemblies you add can be either local assemblies (DLLs or EXEs) or assemblies registered in the Global Assembly Cache (GAC).
You can add an external resource only once to the Class Browser. External resources that you add to the Class Browser persist between sessions of Progress Developer Studio for OpenEdge.
When you add an external assembly reference, the Class Browser automatically updates the classBrowser.xml file for the workspace.
Follow the given steps: