And please move your app to Msxml6 as soon as possible. You can download it 
from 
http://www.microsoft.com/downloads/details.aspx?familyid=993c0bcf-3bcf-4009-be21-27e85e1857b1&displaylang=en

For more info please see 
http://blogs.msdn.com/xmlteam/archive/2006/10/23/using-the-right-version-of-msxml-in-internet-explorer.aspx

Regards,
- Umut Alev [MSFT]

"Martin Honnen" <mahotrash@y...> wrote in message 
news:eRCrbMIGHHA.5000@T......
> bigHairy wrote:
>
>> I have since tried to use the same method on a different web server
>> (server 2003 running IIS 6) and I get the following:
>>
>> UnauthorizedAccessException: Access is denied. at
>> MSXML2.ServerXMLHTTP40Class.send(Object varBody) at
>>
>> my code is exactly the same, it is unchanged. I have installed the
>> msxml.msi on the new web server in the same way that I did on the old.
>
> Check the proxy settings
> <http://msdn.microsoft.com/library/default.asp?url=/library/en-us/xmlsdk/html/8214dcb7-7a53-4a8c-b91a-02772c06ad7d.asp>
>
>
> -- 
>
> Martin Honnen --- MVP XML
> http://JavaScript.FAQTs.com/