To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
Add these entries to the Registry
Use regedit and browse to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fusion and Add:
DWORD ForceLog set value to 1
DWORD LogFailures set value to 1
DWORD LogResourceBinds set value to 1
String LogPath set value to folder for logs (e.g. D:\FusionLog\)
Include the backslash after the folder name and that the Folder exists.
After the change is made, an app pool recycle will need to be performed.