Quickset Not Installing

Hi,

I recently just reformatted back to factory installed.  And while uninstalling things I didn't want, I must have uninstalled quickset and now my waves audio and the quick launch buttons won't work.

I tried downloading quickset from the Dell download page, and using the driver disk.  But whenever it starts installing it says "this is not a supported system".

I have a XPS L702X with Windows 7 Home Premium

Not sure where to go from here.  Any Ideas?

Thanks,

Kevin