Prevent Visual Studio from trying to load symbols for a particular DLL

Question

I have Visual Studio 2005 set up to use Microsoft\'s symbol servers. I also have UltraMon installed, which injects a hook DLL into every process. Whenever I start debugging

Answer 1

In my case it was because I had set "Enable .Net Source Stepping" to true in

Tools > Options > Debugging > General. 

Rather than setting it to false, I set "Enable Just My Code" to true which automatically set "Enable .Net Source Stepping" to false. It gave me a warning before doing so:

Enabling Just my code automatically disabled .Net framework source stepping

Which suggests Just My Code and .Net source stepping are mutually exclusive.

I hope this helps someone.