Download the Quick Launch Hotkeys Utility Go to the HP Quick Launch Buttons download page (see the link in Resources). Click the "Download" button on the page. Click "Save File" in the dialog window.

From the results that appear, click "HP Quick Launch Buttons." Browse to the location where you wish to save the Quick Launch utility, and then allow the download to complete.

This HpqKbFiltr.sys file is a keyboard driver and appears to be part of the HP Quick Launch Buttons software that allows you to configure various buttons to launch programs in Windows.