RegFileExport v1.11 - Export offline Registry file to .reg file of Windows
Copyright (c) 2010 - 2019 Nir Sofer

See Also


RegFileExport is a small console application that allows you to easily extract data from offline Registry file located on another disk drive. RegFileExport read the Registry file, ananlyze it, and then export the Registry data into a standard .reg file of Windows. You can export the entire Registry file, or only a specific Registry key.

RegFileExport may also be able to export some of the Registry data even when the Registry file is corrupted and cannot be loaded by Windows.

System Requirements

This utility works on any version of Windows, starting from Windows 2000, and up to Windows 10.

Versions History

  • Version 1.11:
    • Fixed bug: RegFileExport failed to handle properly large Registry values with more than 16344 bytes.
  • Version 1.10:
    • Fixed bug: RegFileExport failed to export properly value names with '\' and '"' characters.
  • Version 1.09:
    • Fixed bug: Under certain conditions, RegFileExport skipped half of subkeys or crashed while reading Registry key that had many subkeys.
  • Version 1.08:
    • Fixed a glitch in the release of version 1.07 that caused it to stop working....
  • Version 1.07:
    • Added support for UsrClass.dat hive ( HKEY_CURRENT_USER\Software\Classes )
  • Version 1.06:
    • Fixed issue: RegFileExport hang/freeze when reading invalid keys/values.
  • Version 1.05:
    • Fixed problem with large Registry keys, like HKEY_LOCAL_MACHINE\Software\Classes
    • Added FF FE Unicode prefix, like in standard .reg file.
  • Version 1.00 - First release.

Using RegFileExport

RegFileExport is a console application designated to be used by advanced users. RegFileExport accept 2 - 3 parameters, according to the following syntax:

RegFileExport [Registry File] [Destination .Reg File] {Registry Key}

{Registry Key} is optional, if the key is specified, only this key and all its subkeys will be exported into the .reg file. Otherwise, the entire file will be exported.
if [Destination .Reg File] is an empty string ("") the Registry data will be sent to the standard output.

RegFileExport "E:\Windows\system32\config\SOFTWARE." "f:\temp\reg1.txt" "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion"
RegFileExport "SOFTWARE" "" "Software\Microsoft\Windows NT\CurrentVersion"
RegFileExport "NTUSER.DAT" "ntuser-reg.txt"
RegFileExport "NTUSER.DAT" "ntuser-reg.txt" "HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion"

More Information

  • RegFileExport can also export secret data that is only available for 'SYSTEM' account, like the password/security information stored in SECURITY and SAM Registry hives.
  • RegFileExport cannot export Registry data of your currently loaded operating system, because these files are locked by Windows.
  • On Windows XP - If you want to extract Registry infromation from previous restore points, you can find the Registry files of every restore point under C:\System Volume Information\_restore{guid}\RPxxx\snapshot. However, you must change the permissions of this folder in order to access these files, or alternatively, you can run cmd.exe as a SYSTEM account (with 'at' command), and then you'll be able to access this folder and the Registry files that are stored in it. Be aware that the _restore{guid} subfolder also has 'hidden' attribute.


This utility is released as freeware. You are allowed to freely use it at your home or in your company. However, you are not allowed to make profit from this software or to charge your customers for recovering their Registry data with this tool, unless you got a permission from the software author.
You are also allowed to freely distribute this utility via floppy disk, CD-ROM, Internet, or in any other way, as long as you don't charge anything for this. If you distribute this utility, you must include all files in the distribution package, without any modification !


The software is provided "AS IS" without any warranty, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The author will not be liable for any special, incidental, consequential or indirect damages due to loss of data or any other reason.


If you have any problem, suggestion, comment, or you found a bug in my utility, you can send a message to

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