Setting up client certificate.

[Ashish]

I am trying to use a web service over ssl, that requires a client
certificate to be installed.

i imported a .p12 file and my windows applications are able to access
the service.

but when i try same code with web application i get "The underlying
connection was closed: Could not establish secure channel for SSL/TLS."
error

It would be great if someone could provide some information as to how to
setup client certificates to be used by aspnet user ..

thanks in advance
-ashish