InformationWeek has a four page review of BartPE. BartPE allows people to create LiveCDs from their personally owned copy of Windows. I’m not sure how this affects the licensing, so you may need to do a bit of reading if you’d like to stay legal. Another strange thing about this review is how it continually praises the features provided by BartPE, while neglecting to mention other LiveCDs like Knoppix, which easily has 100x more ability.
BartPE lets you start or stop file sharing on the PC you’re working on; set or reset the Admin password; or even invoke XP’s powerful “Remote Desktop Connection” facility. Combined, these abilities facilitate moving files to or from a distant PC, or using repair and recovery tools located on another system.