Update runtime files.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 790e66c..b50711c 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 7.4.  Last change: 2014 Sep 09
+*options.txt*	For Vim version 7.4.  Last change: 2014 Sep 23
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -4009,6 +4009,7 @@
 	When Vim was compiled with HAVE_X11 defined, the original icon will be
 	restored if possible |X11|.  See |X11-icon| for changing the icon on
 	X11.
+	For MS-Windows the icon can be changed, see |windows-icon|.
 
 						*'iconstring'*
 'iconstring'		string	(default "")