Been implementing the Basic security Authentication
in a WCF Service.
Managed to get the .ASPXCookie
from the web service. But
To add a Cookie header to the WCF request in the current context given that you have the cookie string already:
var prop = new HttpRequestMessageProperty();
prop.Headers.Add(HttpRequestHeader.Cookie, sharedCookie);
OperationContext.Current.OutgoingMessageProperties.Add(HttpRequestMessageProperty.Name, prop);