"Unable to start debugging on the web server. The debugger is not registered on the web server computer. Visual studio or full remote debugger components must be installed on the web server"

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I am using windows server 2003 and I have installed vs.net2005 and then I have installed vs.net 2003 when I am tryting to run my web application which is configured on IIS I am getting above error.

 And also I have created new web application, that is not configured in IIS. While running this new web application I getting following error message.....

Unable to start praogram 'C:\Program Files\Internet Explorer\IEEXPLORE.EXE'. The debugger still attaching to the process.

I think http://msdn2.microsoft.com/en-us/library/aa290100(vs.71).aspx covers your scenario.

And the image name for Internet Explorer should be iexplore.exe NOT ieexplore.exe!

Did you get the same error from VS2005 and VS2003?