As far as I know, no version of Windows has ever allowed any backup program
to back up all the files while Windows was open and in use. Such backups as
were made always lacked key files, and if they were installed on a newly
formatted disk, it would not boot Windows.
Image programs do just what you want to do, and most of them do not do
sector by sector except as an option of damaged disks. They do make a
restorable bootable copy of the whole system. They must reboot to restore,
because Windows cannot be restored while it is running. They use their own
versions of Linux to boot on. But most will make an image while running
under Windows. Acronis True Image Home is such a program.
Both XP and Vista allow making restore points which operate entirely under
Windows, but if Windows won't boot they won't do you any good. It is the
point of an image program that you are most likely to need to restore
Windows when it is so damaged it won't boot. Thus they have a boot disk that
restores Windows.
I don't know if Win 2000 will make restore points or not. Acronis 8 which
can be had cheaply on eBay will run on Windows 2000.
If there are many gigs of data, don't even consider backing up onto CD or
DVD, unless you enjoy making repeated swaps during a restore. Use an
external drive or a second internal drive.
Good luck
Hi - use the robocopy - this is new tool come with win2003 - you can
download it from Microsoft site.
Work from command line the same like xcopy - don't have problems with
copy long paths and restricted files - before use - read help for
parameters.
Good luck