[FOLD] Well, actually, 3.0 doesn't work so well:

* Changed the recommended version for Windows to 1.1.1L after deeper
  checking uncovered some build issues.

Builds/VisualStudio2017/README.md

@@ -53,15 +53,16 @@ Windows is mandatory for running the unit tests.
 [Download the latest version of
 OpenSSL.](http://slproweb.com/products/Win32OpenSSL.html) There will
 several `Win64` bit variants available, you want the non-light
-`v3.0` line. As of this writing, you **should** select
+`v1.1` line. As of this writing, you **should** select
 
-* Win64 OpenSSL v3.0.0
+* Win64 OpenSSL v1.1.1L
 
 and should **not** select
 
 * Anything with "Win32" in the name
 * Anything with "light" in the name
 * Anything with "EXPERIMENTAL" in the name
+* Anything in the 3.0 line - rippled won't currently build with this version.
 
 Run the installer, and choose an appropriate location for your OpenSSL
 installation. In this guide we use `C:\lib\OpenSSL-Win64` as the destination