I just read a postfrom Scott Hanselman that mentioned a tool that I hadn’t recalled hearing about before called the Fusion Log Viewer, also called the Assembly Binding Log Viewer. It appears to be available as part of the framework install. I found two instances of the executable on my development machine, both under C:\Program Files\Microsoft SDKs\Windows.

What is so special about Fusion Log Viewer? Well, not that much, but it could be helpful if you are having an issue with a wrong version of an assembly being loaded at runtime or an assembly not being found to load at runtime. Other tools such as .NET Reflector and Process Explorer can help you debug concrete references and what has already been loaded explicitly, but if you are doing dynamic assembly loading this tool may be useful.