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web service certificate authentication

Hi!

Just one question. I'm writing a web service client in .NET with C#. In order to use this ws's operations the client must be authenticated by providing a registered certificate to the server.

Until recently I was convinced that this was done by just using the ClientCertificates.Add() of the object describing the web service. I didn't notice, though, that I've also has that certificate installed in the Internet Explorer Certificate Store. When I removed from there the service authentication stopped working for me, raising an exception with the following message:

"The request failed with HTTP status 400: No client certificate chain in this request."

Question: Is it imperative to install the certificate in the local IE Store??

Thanks in advance.
Feb 28 '07 #1
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