http://developers.de/blogs/damir_dobric/archive/2009/02/14/pex-allowing-of-an-exception.aspxDuring discovering of the code (method) Pex may find a number of different parameter variations. For each variation of input parameters the program will step through a different execution paths. In the example below one method is shown, which implementsenCommunityServer 2008 SP1 (Build: 30619.63)