From Lens Art:
The RealBasic Install Exception Handling, Really IDE tool provides a way for a developer to put a generic exception handling system into a program after it has been written. The download provides an applescript that gives developers a way to dump an entire program in XML out of the IDE. The Install Exception Handling tool uses that project dump XML to create a new XML file, but with exception handling injected into the code. By double clicking on the new XML file, a project will open in the IDE that is identical to the first, but with exception handling.