wsdl access and usage when the service endpoint is secured with https

I want to implement a SOAP interface that is secured with https.

When I attempt to add a web reference, visula studio gives a 403 Forbidden error.

I have a certificate for the web service but do not know how to make Visual Studio use that certificate when adding the web service as a reference.

Once the wsdl is accessible, the next problem will be how to have my Visual Basic application also use the certificate.

I am attempting to code with WCF

Can someone point me in the right direction?  I expect that this will boil down to just a few lines of code.

Jim Durbin

LIMS Consultant