Drive Snapshot is a backup and restore program for WinNT/2K/XP systems.
Drives stay writeable while a backup is in progress, because modifications are tracked by Drive Snapshot.
For more informations on this product by Tom Ehlert see http://www.drivesnapshot.de.
The program can create snapshots under Windows and is useful for backup and recovery purposes.
A DOS boot disk is used to restore system partitions when WinNT became unusable.
Tom has contributed a lot of work to the FreeDOS kernel to make it a reliable and stable base for the restore process, working on all kinds of PCs.