Mapping laptop's keys

One of my laptops arrow key is not functioning, is there any way to map some other key on my keyboard to malfunctioning arrow key. I tried registry hack but it doesn't works while playing games which I suppose is due to the DirectX that games use for direct access to hardware, 开发者_开发百科bypassing OS APIs (regestry etc). Many games allows you to reconfigure your controls but the one I am playing (MEAT BOY) doesn't allows me to change default controls.

Thank You in advance.

Have you tried The Microsoft Keyboard Layout Creator? I think this should translate the keys at a sufficiently low level for your purposes.