Problem with IIS - now I cannot debug my C# code

I am learning Micosoft's C# language and the .NET technology in general. I
cannot debug my C# code (even if it compiles fine). When I try to debug, I
get an "Unable to start debugging" message. It gives the detail "A security
check failed because the IIS Admin Service did not respond. To fix this,
repair of remove IIS, and restart your computer. See help..." Help then
tells me to either reinstall IIS or remove IIS. I removed IIS using the
Add/Remove in the control panel, but I STILL GET THE SAME MESSAGE when I try
to debug my C# code. Evidently, IIS was not completely removed The message
also says to check the registry and make sure this key number no longer
exists:
HKEY_CLASSES_ROOT\CLSID\{A9E69610-B80D-11D0-B9B9-00A0C922E750}
I looked in the register with regedit but did not find this string.

I would apprciate any advise or help. I went to several PC repair shops but
none of them was interested in solving this software problem

If I have put this entry in the wrong newsgroup, someone please tell me what
newsgroup to put it in.

Thanks in advance!