Mike said:
If you can't boot WinXP, even in safe mode, then system restore is useless.
I hope MS is working on this for Longhorn. An utility to restore from
restore points at a command prompt would be worth it's weight in gold!
If you boot with F8 to the menu and take Safe Mode - Command Prompt
(which is XP using cmd.exe as the shell) you can run the line
C:\Windows\system32\restore\rstruui.exe
which will load the regular System restore and may allow you to get back
- it depends on *why* a more normal boot is not possible.
Or make a registry backup using ERUNT from
http://home.t-online.de/home/lars.hederer/erunt
and put the backup folder (ERDNT) it makes *inside* the windows folder.
You can then, from a recovery console boot of the CD, copy files that
have no extension from there back into windows\system\config to restore
that version of the registry