AppleLPC.kext gone, what to do?

hey guys, after the firmware update everytime Ive had to boot my macbook I get the same message as its loading the desktop "Applelpc.kext was installed improperly contact the vendor, reinstallation needed" or something to that effect. Anyone have a fix/know what it does. And if the only solution is an archive and install could someone explain what that entails. Any help is greatly appreciated.

I had to move all my files from one laptop to another (bit of a liquid mishap...all data fine.. laptop off to Apple for new kybd
After migrating everything over I had problems with 3 extensions.
I've run updaters.. error persisted.
Tried re-installing the airport extensions from install DVD using pacifist (great utility)
Don't know what AppleLPC is but still getting the "installed improperly" error as per first message on this thread. Can't find anything like it on the install DVDs to try and re-install it.
Mac seems happy without it.. but very curious what it does too.

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