How to consume SSL web service in WPF. how WPF download SSL certificate

I have a WPF application that requires to con开发者_如何学编程sume an SSL web service. How can I download SSL certificate in my WPF application?

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YOU. CAN. NOT.

it is not an aplpications place to download and install ssl certificates - it is the responsibility of the comptuer admin to make sure the root certificate is trusted OR NOT.

Basically - no self signed certificates, no shady root certificates.