This article is from the Secure Sockets Layer Discussion List FAQ, by Shannon Appel SAppel@consensus.com with numerous contributions by others.
...Which Winsock would you recommend using to test our
SSL? Does it matter if Winsock 1.1 or 2.0 architecture is used?
No -- SSL Plus is designed to be transport independent and work with
both socket and stream styles of I/O. SSL Plus includes some
examples of using WinSock 1.1 in the Win32 builds of our sample
code. However, we recommend that you write your own callback code if
you want better handling of your I/O than what our sample routines