current OperationContext is null in WCF Windows Service

Question

I am trying to set up a Publish/Subscribe system using WCF and where the WCF server is in a Windows service. The binding is net.TCP. The service is providing a \"Subscribe

Answer 1

In my case it was me being stupid...

I tried to set

 callback = OperationContext.Current.GetCallbackChannel();

In the CALLBACK function, instead of the server side funciton... When in callback function - obviously there's no current context.