Recursive Procedure/Function Caller Tree

Hi all...this is something I have been looking into for some time but I cannot find a solution anywhere.

I have several functions and procedures (hundred). When I change one I need to know what others are affected. I have been using MZ-Tools procedure caller but it only works up to the parent level. I need to recursively trace all calling elements of all procedures to build a full tree view of relationships.

Any ideas / code ?

e.g.

http://www.mediafire.com/convkey/e0c...mz7h9frp6g.jpg

But recursively for all called > then extend to all relationships (this is a basic one)

http://www.mediafire.com/convkey/79a...p4h7dwc76g.jpg

A visual map with linked items would be better. This would be a large project to undertake, but would benefit the entire VB / VBA community.