Spamming one specific key

[mile]

I was wondering if anyone could help me make this macro and get it turned into a simple .exe. All I want is to be able to hold down the 0 on the Numpad(N0), and have it simply spam 0 until I let it go, or if that is impossible, when I hit 0 have it spam the Numpad0(N0) 3 or 4 times. Please help someone I've gotten this so far but I don't think its right...

Code:

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rep 100000
,ifk(N0)
,,end
,0.00001
[/code]