How to Gracefully Exit Explorer by nsis

[habenyamin]

I know Can kill it but this is not normal closing or shutdown a process

as u know there is hidden option in Windows Vista and 7 8to clsoe explorer
by press "Ctrl" and "Shift" keys and right-click on empty area in Start Menu
or {Ctrl}{ESc} {Ctrl}{Shift} {RIGHT} {F10}{X}



i found this code 0x5B4 to close explorer and it works but this code is not inthe List of Windows Messages & i don,t know this good way or not
FindWindow $0 "Shell_TrayWnd" ""
SendMessage $0 0x5B4 0 0

http://www.autohotkey.com/docs/misc/SendMessageList.htm


if there is ture way to close explorer Pls help me?