msxml3.dll error ‘80072ee2’

One of the page using asp Msxml2.ServerXMLHTTP was giving the below error.

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msxml3.dll error ‘80072ee2’
[/plain]

On checking the code he was sending ServerXMLHTTP request to the same server. And this is not recommended by Microsoft itself. The calling Active Server Page (ASP) should not send requests to an ASP in the same virtual directory or to another virtual directory in the same pool or process. This can result in poor performance due to thread starvation.
http://support.microsoft.com/kb/316451

Solution:
But the client didn’t wanted to change his code. On checking further the application pool for this domain was restricted to single worker thread. So I increased it to 3 and it solved the issue.