Some are not clear what they do from the file name:
Decided to just post .cab files for the T-mobile Wing so they'll all be in one place instead of running all over the net. Feel free to add some if you like.
btasp.cab (23.1 KB, 0 views) <- Use to improve sound quality on Bluetooth Stereo headsets
RC Mod v.2.1 ENG.CAB (307.9 KB, 0 views) <- Allow to change colors of menu bars, etc
Save someone a search maybe.