This rule has been archived
Archived Reason: Has been replaced by Application Insights
Your users should never see the "unhandled exception" message in Windows Forms, WPF and Silverlight. You should always log errors somewhere (preferably a SQL database).
LadyLog is a Windows UI for your application that allows users to Log meaningful errors.
See SSW .NET Toolkit - LadyLog.
We have a program called SSW Code Auditor to check for this rule.
