Dawn, thanks for the response!

I am pretty sure it doesn't have anything to do with cookies... I just built a C# app on my local machine that accesses the same web site using the X509CertificateStore in the WSE 2.0 library. It works! So, I know my issue is with trying to use the .CER file instead of using certificate/authentication directly out of the local certificate store. If I can just get WSE 2.0 working in my TU aspx page, I am almost certain it will work!

Does anyone know a good site on how to troubleshoot why WSE is not available on my web page? Tips? Tricks? HOWTOs? Anything would be greatly appreciated! I'm so close!

Thanks,
JoeK

>>

>>Dim TUcert As X509Certificate = X509Certificate.CreateFromCertFile(mcCertFile)
>>.
>>.
>>oRequest.ClientCertificates.Add(TUCert)
>>.
>>.
>>oRequest.GetResponse()
>>

>
>
>Joe,
>
>What you've described sounds rather complex to me, an outsider to your issue. However, I ran into something similar when accessing a secured web service, I was receiving error 403 access denied. In the end I found out that the cause of the problem was that my request wasn't accepting cookies. Are you using HttpWebRequest, if so, below is what fixed my problem:
>
>

>oRequest.CookieContainer = New CookieContainer()
>

>
>Hope this helps,