hi, i'm doing project on latency equalization as a new network service primitive.. in my project message is passing from client to server and via server to client but file is not transferring from client to server.. i'm getting null reference exception unhandled... please help out where to correct this error...

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if any body finds to correct error then please mail to my ID sandyyammu7[at]gmail.com regarding latency equalization as a new network service primitive...