--- libev/ev.pod	2012/05/06 13:42:10	1.416
+++ libev/ev.pod	2012/05/06 19:29:59	1.417
@@ -4556,6 +4556,13 @@
 file descriptors again. Note that the replacement function has to close
 the underlying OS handle.
 
+=item EV_USE_WSASOCKET
+
+If defined to be C<1>, libev will use C<WSASocket> to create its internal
+communication socket, which works better in some environments. Otherwise,
+the normal C<socket> function will be used, which works better in other
+enviornments.
+
 =item EV_USE_POLL
 
 If defined to be C<1>, libev will compile in support for the C<poll>(2)