HTTP Session sharing between WCF services

My project developers said that http session sharing between wcf services is not easy,

they were considering another way to do that such as session server.

but I didn't agree their saying, I believed that Microsoft never leave this kind of critical issue be alive. So at dawn I wrote sample project and finally I solved that. 

Maybe this issue was caused by out mistake when creating a wcf service project.

Here is the sample solution:

WcfSessionTest.zip