Include MSYS directory in Windows path

setup-path-win.bat

@@ -1,5 +1,5 @@
 @echo off
-setx /M path "%PATH%;C:\MinGW\bin" > nul 2>&1
+setx /M path "%PATH%;C:\MinGW\bin;C:\MinGW\msys\1.0\bin" > nul 2>&1
 if NOT ["%errorlevel%"]==["0"] (
 	echo FAILED. Rerun with administrator privileges.
 	pause