If you have not found the answer (although i think you must have), You need to build the solution and then install the VirtualRouterService project output as a Windows Service.
1. First you need to build the solution.
2. Now Open the Visual Studio Command Prompt and use the command
"installutil -i [Path Of VirtualRouterService Project]\bin\Debug\VirtualRouterService.exe"
3. Although the service starts automatically, but u can manually start and stop using
"net start VirtualRouterService" to Start and
"net stop VirtualRouterService"
4. Now Running the VirtualRouterClient project works good.
Hopefully this helps someone in need.