HTC S720 (LIBRA) Sliding sound tweak

Tired of the three annoying sliding sounds that microsoft gives you for your shiny new S720? Because this phone is a smartphone and not a pocket PC, the locations for the data you need to edit are different than any other sliding keyboard phone.

First you will require your new custom sound files.
16 Bit 44Khz stereo PCM wave works nicely (this is the format that windows used for it's existing files)
You will need three files total:
4.wav - the "sample" sound. Duplicate either in or out file
4_in.wav - The keyboard slide in sound
4_out.wav - The keyboard slide out sound

Next copy them to your windows directory on your phone.

Then you will require a Registry editor (Ghisler Total Commander for example)
And navigate to HKCU\ControlPanel\Sounds\

There are three keys here you have to change.
SlidingSound - Change the value of sound to 4.wav
SlidingOut - Change the value of sound to 4_out.wav
SlidingIn - Change the value of sound to 4_in.wav

And presto, your phone should now be using your custom sound files instead of the boring windows ones.

- Keep in mind: If you visit your sound settings in windows to change anything (such as default ring tone or alarm/reminder sounds) as soon as you hit done, windows will reset it to whatever sliding sound was previously listed, you'll have to go back and re-edit them on your own but it's the small price to pay for custom ring tones.