Docs Required - Multithreading and Socket Programming using C++/CLI and Windows

Question

I wish to study more about sockets and multithreading and how one can implement them in C++ using windows.h and winsock.h...
Can anyone please provide me links for tutorials based on these topics?
I searched the net, but found nothing that was explanatory...
Please help me by sharing some docs as pdfs or online blogs or websites!
Thank You in advance...

Answer 1

for socket programming:
https://msdn.microsoft.com/en-us/library/windows/desktop/ms738545(v=vs.85).aspx
multithreading:
https://msdn.microsoft.com/en-us/library/y6h8hye8.aspx