REGISTRY TOOLS:

NTREGOPT (v1.1j) Category: Utility (Registry Tool)
Language: EN, IT, DE, ES, FR & others
License: Freeware
Rating: 3
Authors: Lars Hederer (software)
Description: It helps to compact the Windows registry by recreating each registry hive "from scratch", thus removing any slack space that may be left from previously modified or deleted keys. Note that the program does NOT change the contents of the registry in any way, nor does it physically defragment the registry files on the drive.

RegASSASSIN (v1.03) Category: Utility (Registry Tool)
Language: EN
License: Freeware
Rating: 2
Authors: Malwarebytes Corporation (software)
Description: It helps remove stubborn registry keys by automatically resetting the key's permissions and then deleting it.

RegFromApp (v1.20) Category: Utility (Registry Tool)
Language: EN, IT, DE, ES, FR & others
License: Freeware
Rating: 3
Authors: Nir Sofer (software)
Description: It monitors the Registry changes made by the application that you selected, and creates a standard RegEdit registration file (.reg) that contains all the Registry changes made by the application. You can use the generated .reg file to import these changes with RegEdit when it's needed.

Registry Tweaker (v2.1.2.283) Category: Utility (Registry Manager)
Language: EN
License: Freeware (authorization)
Rating: 3
Authors: Miha Jakovac (software)
Description: It is a powerful application that allows you to access many obscure registry tweaks easily. It provides a nice description for each tweak as well, helping less technical users understand what each one does. It also supports profiles, which allow you to apply a predefined set of tweaks automatically.

RegScanner (v1.80) Category: Utility (Registry Tool)
Language: EN, IT, DE, ES, FR & others
License: Freeware
Rating: 2
Authors: Nir Sofer (software)
Description: It is a small utility that allows you to scan the Registry, find the desired Registry values that match to the specified search criteria, and display them in one list. After finding the Registry values, you can easily jump to the right value in RegEdit, simply by double-clicking the desired Registry item. You can also export the found Registry values into a .reg file that can be used in RegEdit.

Regshot (v1.8.2) Category: Utility (Registry Monitor)
Language: EN, IT, DE, ES, FR & others
License: Open Source
Rating: 4
Authors: Regshot Team (software)
Description: It is a small registry compare utility that allows you to quickly take a snapshot of your registry and then compare it with a second one - done after doing system changes or installing a new software product. The changes report can be produced in text or HTML format and contains a list of all modifications that have taken place between the first and second snapshot. In addition, you can also specify folders (with subfolders) to be scanned for changes as well.

Regshot2 (v2.0.1.68) Category: Utility (Registry Monitor)
Language: EN, IT, DE, ES, FR & others
License: Open Source
Rating: 4
Authors: Regshot Team (software)
Description: It is an improved unicode version of Regshot, with some additional features and a redesigned GUI.

UNDOReg (v2.0) Category: Utility (Registry Tool)
Language: EN
License: Freeware
Rating: 2
Authors: Davide R. (software)
Description: It analyzes the report generated by some utilities like Regshot, and makes a recovery of registry keys.