#include <GuiToolbar.au3>
Dim $1="[CLASS:MMCMainFrame]"
Dim $iIndex='1'
If WinExists($1,'')=False Then
ShellExecute('services.msc')
Else
WinActivate($1,'')
EndIf
WinWaitActive($1)
Local $2=ControlGetHandle($1,"","ToolbarWindow322")
_GUICtrlToolbar_ClickIndex($2,$iIndex,'left');