Look at the StackTrace property of the exception.
To get the most information from the stack trace, you'll want PDB
files available for you assemblies. (Project -> Properties ->
Configuration Properties -> Build -> Generate Debugging Information =
true).
This is only possible if you compile it in debug mode AND if you have the
..pdb file in the same directory than the .exe , if so you can use the
StackTrace property of the exception.