calling a wcf service with username and password

[monfu]

Hi All

I wish to connect to a WCF service, using a username and password, however I am not managing.

I am trying the following
string auditProtocolsURL =
String.Format("http://host/Login?username=myusername&password=mypassword");

Can someone tell me what I am doing wrong please?

Thanks for your help and time

Johann