#MaxThreadsPerHotkey 3
z::
#MaxThreadsPerHotkey 1
if KeepWinZRunning
{
    KeepWinZRunning := false
    return
}

KeepWinZRunning := true
Loop
{
    	Sleep %randtime%
	MouseClick, left
	Random, randtime, 1600, 1730
    if not KeepWinZRunning
        break
}
KeepWinZRunning := false
return