Program for quick change sound device by double clicking on icon in tray. Of course system must have more than one device.

All settings available by clicking right mouse button on tray icon.

Program for improvement IPAQ21x (loud sound + insensible touchpad + 3D hardware effects)
Increase hardware volume, improve touchpad sence, improve touchpad precision, you can use front dynamic, you can enable hardware 3D

Simple program for creating flash dump for PDA hx4700, useful for backup.