URFIN JUS Released HuntERR 3.0 - Error Handling Solution for Visual Basic.
Provides error handling, stack tracing, reporting, persisting, aborting
transactions, ADO errors reporting, etc.
Tons of new features in this release: system exceptions handling, API
errors, Extensibility, MS XML error handling, line numbers support, VB
add-in, bulk migrating of existing code, full-featured demo, updated
documentation, and much more!

http://www.urfinjus.net/UJ1/HR_Main.asp