VirtualReg Manager

VirtualReg Manager is a feather-light and portable application that provides a user-friendly graphical interface for creating a virtual registry. It also offers support for command-line arguments and enables you to virtualize registry keys along with their subkeys.

No setup required, besides .NET Framework

The entire program's packed in a single .exe file that can be saved to a custom directory on the disk or copied to a removable storage unit, in order to seamlessly launch VirtualReg Manager on any PC. It doesn't create files on the disk without your permission. However, it depends on .NET Framework, so you must have this platform installed.

Explore registry hives and entries

As far as the interface is concerned, VirtualReg Manager has a single window with a plain appearance and neatly structured layout, where you can explore the HKEY_CLASSES_ROOT, HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, HKEY_USERS and HKEY_CURRENT_CONFIG registry hives, which are automatically identified and loaded at startup.
Any selected key can be added to the virtualization list with the click of a button and just as easily removed if you change your mind, while subkeys can be included or excluded. The new virtualized registry can be generated by saving a .vreg file in any preferred directory.

Easily edit virtual registry files

VirtualReg Manager comes bundled with a virtual registry editor that can display all hives and entries loaded from a previously created .vreg file, giving you the possibility to make modifications and overwrite the file or create a new one.
Lastly, the application can be integrated into the Windows Explorer shell extension, provided that you launch it with administrative privileges.

Evaluation and conclusion

Although it hasn't received updates for a long time, the utility remained stable throughout its runtime in our tests, running on a low amount of CPU and RAM. No error dialogs popped up and it didn't hang or crash.
To wrap it up, VirtualReg Manager features straightforward options for helping you create and edit virtual registry files. On the other hand, it doesn't have richer settings.