I have to write log entries through my app (ASP.NET -VB-)

In my understanding that's what I do: created a DLL Message library, then I've created certain registry entries, and insert the log entry using System.Diagnostics.EventLog.WriteEntry method on my app, then, it insert the entry but seems to be wrong somehow, the event shows:

"The description for Event ID ( 0 ) in Source ( -sourcecreated- ) 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: <<HERE THE MESSAGE I WANT TO LOG>>"

So, what I need is, a Step by Step procedure to do this (baby steps if possible) to accomplish this successfuly.

Thank you

Omar