using client certs from asp.net

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Hi All,
I'm following the How To:
[url]http://msdn.microsoft.com/vbasic/using/understanding/security/default.aspx?pull=/library/en-us/dnnetsec/html/secnetht13.asp[/url]

I'm having trouble getting my serviced component to load the correct profile
for the cert to be passed to the web service. I was wondering if anyone has
completed a serviced component running under a different user profile and if
they actually got it to run.

Thanks,
Tom Clark