Restoring BKF backup file - in Windows 7 or newer

While cleaning old backup media, I have found a couple of NT Backup files, with the BKF extension, the earliest from the year 2001. Fond memories!

In Windows 7 and newer there seems to be no immediate way of restoring these.
Here's the fastest way I have found, using the original NTBackup utility.

1. Download these files, copied from Windows XP
2. Unpack them to a separate folder.
3. Run Ntbackup.exe, ignoring any warnings.
4. Follow the wizard.