Bad Installation But Cannot Uninstall Reporting Services - Need He

I seem to have had a problem regarding my installation of SQL Server 2005 -
Developer Edition on my Windows XP Pro machine. I have tried to uninstall
either Reporting Services or all of SQL Server. However, it keeps getting
stuck in the Uninstall of Reporting Services and then does a rollback.
The error that I am getting in each case is as follows:
Setup failed to read IISMEMMAP TABLE. The Errorcode is -2147024893.
Does anyone know how to get out of this so I can try to fix the installation?
Thanks for any advice.
--
John GallagherHi John,
You may try using the tools below to remove SQL Server 2005 manually
Description of the Windows Installer CleanUp Utility
http://support.microsoft.com/kb/290301/en-us
Sincerely yours,
Michael Cheng
Microsoft Online Partner Support
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