I'm not sure if this is possible, but I'm curious if there is a way to record all events that are fired by a desktop program (written in .Net 2.0)?

The reason I ask is that we have program at work that we are going to be re-writing soon. We want to see what parts of the program are used the most and how the program is navigated.
For example:
Form1.btnSearch clicked 300 times
Form2.btnSubmit clicked 185 times
etc.

Or even better would be a 'flow diagram' of how the person navigated through the program.

EDIT: We don't want to manually add tracking code to each function either...

I'm going to give this a shameless bump back to the first page, although given there are over a hundred views and no replies I'm going to assume this isn't possible...

Reflection?