It works on all version of Windows. You need to follow these steps.
1) Download Visual Studio Community 2019. Its free. Google it for the setup.
2) Download the source files which you already done it.
3) Install VS2019, and then open the source for HGServer and Client, using the their respective .sln
4) Change the IP inside Globaldef.h after opening Client.sln to your internal IP.
5) Compile both HGServer and Client.
6) Then follow the guide of the procedure posting my Jorge.
Then it will work.