Scanreg is a real mode registry-checking program with the following switches.

Scanreg /Backup (Backs up the registry and related system files)

Scanreg /Restore (Shows a list of previous registry backups from which one can be chosen for restoration)

Scanreg /Fix (Repairs the registry)

Scanreg /Backup Comment="<comment>" (Adds the specified comment to the CAB file while backing up)

Editing the Scanreg.ini file in the Windows folder modifies the way Scanreg behaves. The following settings can be changed in Scanreg.ini.

Backup : The registry will not be backed up if this is set to 0, the default value is 1

Optimize : Automatic optimisation of the registry is skipped if this is set to 0, the default value is 1.

MaxBackupCopies : One backup is kept each day for a number of days specified by this value at which point the oldest is discarded. The default value is 5.

BackupDirectory : The default backup directory is c:\windows\sysbckup, adding a complete path at this point can change this.

Files : Extra files can be added to the registry backup using Files=[dir code,] filename1,filename2 etc. Examples of dir codes are:

10 : windir (e.g. c:\windows)

11 : system directory (e.g. c:\windows\system)

30 : boot directory (e.g. c:\)

31 : boot host directory (e.g. c:\)

Therefore to include the Autoexec.bat and Config.sys files the line Files=30,Autoexec.bat,Config.sys would be added to Scanreg.ini

ScanregVersion : This is self-explanatory.

The protected mode version of this program is ScanregW.exe found in the c:\windows directory. It can be used to backup and fix registries but it cannot be used to restore them.