diff --git a/Makefile b/Makefile
index 365bcdb..af613fc 100644
--- a/Makefile
+++ b/Makefile
@@ -35,7 +35,7 @@ ifeq ($(OS),Windows_NT)
 SHELL=cmd
 WINDOWS_IPATHS=-I./cache/include
 WINDOWS_OPT=-LD -EHsc -Feluasteam
-VARSALL="C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat"
+VARSALL="C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat"
 
 luajit.zip:
 	curl -sL -o luajit.zip http://luajit.org/download/LuaJIT-2.0.5.zip
diff --git a/docs/friends.rst b/docs/friends.rst
index 168ae10..4890950 100644
--- a/docs/friends.rst
+++ b/docs/friends.rst
@@ -66,6 +66,10 @@ Function Reference
 
     :param string key: The rich presence key to set. Maximum length is 64 characters.
 
+        Valve has a few special keys which you can read about in their `documentation <https://partner.steamgames.com/doc/api/ISteamFriends#SetRichPresence>`_.
+
+        Besides those special keys, you can also use any arbitrary key for `substition <https://partner.steamgames.com/doc/api/ISteamFriends#richpresencelocalization>`_ in `steam_display`.
+
     :param string value: The value to associate with the rich presence key. Maximum length is 256 characters. If this is set to ``''`` then the key is removed if it's set.
 
     :returns: (`boolean`) This function returns **true** if the rich presence was was set successfully.