MMTray = Places a Music Box icon in the sys tray. Application works well without it.

PCHealth = The part of ME which provides the Restore functionality.

StatMgr = Another of the ME Restore feature

SSPDSRV = Provides Simple Service Discovery Protocol and General Architecture (GENA) services for Plug and Play.

LoadPowerProfile = Required if you are using Power Management. Usually 2 instances of this.

TaskMonitor = Used by Windows to keep track of rate of usage of programs to make defragmenting more efficient.

HPsysdrv = I've been told this is part of the Restore function as well.

USBMMKBD = USB keyboard support

hpfsched = A program that pops up to remind you to register a new HP scanner/printer.