I'm not sure what
noninteractive support
means. Does it mean you can't use SendKeys?
If it means you can't use SendKeys then I can't help you,
otherwise you'll find how to 'send' Alt-Y in MSDN if you scroll to SendKeys, if you don't have MSDN, say and I'll post you the necessary code. (I'm falling asleep, so I'm not in the mood to program a s**t)

Bye,

Me