Mike,

Thanks for your reply, but I already had this defined. I get the same error even if I attempt to browse the default.aspx file from IIS.
>>Hello all,
>>
>>I have recently converted a web application to .NET 4. I am attempting to deploy it to my Windows 2003 server. Now I have successfully deployed it to a Windows 2008 Server and another Windows 2003 Server (for testing purposes). But when I deploy it to my production Windows 2003 Server (running IIS 6), I get an error, namely:
>>
>>HTTP Error 404 - File or directory not found.
>>
>>How can I determine what file or directory is causing this problem? Or what am I missing?
>>
>>TIA
>>
>>Bob
>
>I'm guessing it's the default document.... try adding default.aspx to your url.