Here's a modified ALX (and the COD) -- place the COD in:
C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\8703e-v4.2.1.106_P2.3.0.20\Java

And the ALX in:
C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\8703e-v4.2.1.106_P2.3.0.20

Fire up desktop manager, it should ask to update the BlackBerry core files on the device.

This should also stop it from trying to remove it.

Kormac