Hello I've been trying to create a yahoo mail account creator using httpwebrequest(c#) and the problem I'm facing is with the post string, some information is being passed which are never returned from earlier get methods when loading the yahoo mail registration page. Here is one part of it I captured all traffic with Fiddler but when I search for "7_KUbVdL_LJ8" I can see it in 2 earlier GET methods and that data is part of the ADS request header, it can not be found anywhere in responses. Anyone know what is going on with this? how can it show up in a request if it never showed in a response cause I need to extract that data and include it in my post request. Best Regards!