I'm working with a partner designing a WxPerl app and am looking for some suggestions. Our app will consist of a main UI with two major components. The left side will feature a Listbox containing a list of "modules" The right side of the app will display the UI features of each of the modules, so when a user selects a specific module from the left side the right side will be updated with all the widgets for that particular module. We'd like to keep this a modular framework so adding new modules will be quick and easy. Here's my question.

What are your thoughts for such a UI?

We've looked at using XCR to drive each module but I'm not sure how dynamic that is meaning we don't want to constantly have to update the main UI code every time a new module is released.

We’re using PDK with Inno setup to build and deliver the application, so does it make sense to turn every module into an exe and interact with them that way? If so I’m not sure how we would update the UI from an exe file.

Any suggestions or feedback would be greatly appreciated.