Fuslogvw.exe is included with the Windows .NET Framework and reports how the CLR is loading your assembly and its dependencies (certainly useful for debugging version redirects etc.). By default it logs only failures but to log successful loads just change the registry key at HKLM\Software\Microsoft\Fusion\ForceLog  to 1.

For more info:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cptools/html/cpgrffusionlogviewerfuslogvwexe.asp