Change the key binding in Microsoft Wireless keyboard under Windows XP

I have a Microsoft Wireless keyboard.

It uses one key for both Pause/Break and Scroll Lock. You can switch between them using F Lock.

For functional keys to work, F Lock should be on which turns this button into Scroll Lock mode.

However, I use Break much more often, so each time I need to press it I need to press F Lock then Break then F Lock again.

Can I change the key binding somehow so that when F Lock is on, the button is a Break, and when it's off, the button is a Scroll Lock?

Update:

The Break is quite a special key: it sends a 6-byte scancode (E1 1D 45 E1 9D C5) on press and nothing on release.

I wasn't able to remap it using SharpKeys.