Update runtime files.
diff --git a/runtime/syntax/autohotkey.vim b/runtime/syntax/autohotkey.vim
index 42d4cfd..764f94b 100644
--- a/runtime/syntax/autohotkey.vim
+++ b/runtime/syntax/autohotkey.vim
@@ -1,7 +1,8 @@
" Vim syntax file
" Language: AutoHotkey script file
-" Maintainer: Nikolai Weibull <now@bitwi.se>
-" Latest Revision: 2008-06-22
+" Maintainer: SungHyun Nam <goweol@gmail.com>
+" Previous Maintainer: Nikolai Weibull <now@bitwi.se>
+" Latest Revision: 2015-10-29
if exists("b:current_syntax")
finish
@@ -179,6 +180,7 @@
syn keyword autohotkeyConditional
\ IfExist IfNotExist If IfEqual IfLess IfGreater Else
+ \ IfWinExist IfWinNotExist
syn match autohotkeyPreProcStart
\ nextgroup=