ASP .NET; Error while trying to run

Hello;
I am running the Visual Studio .Net Enterprise Architecture on Windows XP Professional. After I create a new Web Application project and when I click to run on the toolbar I get an error message. So here, I have attached the screen shot of the error message as a jpeg. Could anyone tell me, what that error message means after seeing the attachment?

Thanks
Jacob

Is IIS isntalled?

yes; I have the IIS installed and it is working just fine.

Another thing I noticed is that, after I make a new Web Application Project, if I put some controls on the main page and when I click run I get the error message as I mentioned in my initial post. But If I type in the url address in the browser it will start the page in the Internet Explorer but it won't show some of the controls (Textbox, Command buttons, etc) I put on the page.

So, I have no idea what's going on.

thanks

try this

http://support.microsoft.com/default...;en-us;Q306165

also as far as the serveer controls not showing...make sure you have runat="server" attribute set for them.

Thank you "Cander"; I did go to MSDN wesite as you requested and it is a known issue to microsoft and I did fix the problem.

The problem is "IIS" is not running correctly and all I had to do is "iisreset" at the command prompt and it is working correctly now. Thanks you all for the prompt reply.

thanks
Jacob