These are the steps to take in order to properly install the registry files 
backup batch file into your system:

1.  Copy the file backup.bat into your main drive.
2.  Create a directory where you want your backup registry files to be copied
    to, e.g., "C:\SYSBACKS"
3.  If you have another path and/or name for your backup directory, you will need to edit
    "backup.bat" using  Notepad.  Lines 5, 6, 7, and 8 should refer to the 
    proper directory name where you want your backup files to go.
4.  Run the backup batch file by typing "backup" at the DOS prompt or double-
    clicking on "Backup.bat" while in Windows Explorer.