WinRescue XP is a 4-in-1 tools: Crash Fixer, RegPack, File Backup, and Troubleshooter.
The Crash Fixer saves you the hassle of spending hours reinstalling Windows by restoring it and all of its settings in minutes. RegPack defrags (removes blanks and rebuilds) the Registry. Many times this speeds up Windows. Without the RegPack process, the registry will never get smaller. It works with Multiple Users. File Backup allows the Registry, default files, and any or all files to be backed up. Fix problems with the Troubleshooters.

Download: WinRescue XP 1.08.44