A very simple but effective countdown:
Code:
Break ON
 
$=SetOption("HideCursor","ON")
For $iCounter=45 to 0 Step -1
	Select
	Case $iCounter<6 Color r+/n
	Case $iCounter<10 Color y+/n
	Case "Default" Color g+/n
	EndSelect
	CLS Big At(15,30+5*($iCounter<10)) $iCounter Small
	Sleep 1
Next
$=SetOption("HideCursor","OFF")
Cls
 
Exit 0