Event ID 0 - The description for Event ID ( 0 ) in Source ( .NET Runtime ) cannot be found

The Problem:

Event ID 0

The description for Event ID ( 0 ) in Source ( .NET Runtime ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: Unable to open shim database version registry key - v2.0.50727.00000.

The Solution:

KB918642 - A .NET 2.0 application may require Read/Write permission to a registry

Download the hotfix and apply to the server displaying the error - in my case this was the Index server.