How to connect the server engine with ue4

I have game in UE4, Server engine and VS. After compiling server engine, i have 2 dll. I tried to collect all (client.dll and sorce game code) at Virtual Studio, but i failed. I dont know what should i do, so I wish I could know what kind of knoledge is needed. Thanks in advance.

ive found the solution - Blueprint Networking Tutorials - Unreal Engine