Quicksys RegDefrag 2.7 is a Registry Cleaner product from regdefrag.com, get 4 Stars SoftSea Rating, Quicksys RegDefrag is a freeware utility to defrag Windows Registry. Quicksys RegDefrag is small, clear and easy. Registry data is constantly being written to and removed during a normal Windows operation. Over time this data becomes fragmented.
Quicksys RegDefrag optimizes your registry by removing gaps, fragments and wasted space in Windows registry files.
The defragmentation improves whole performance and boosts access to the registry.
Whats New in version 1.3:
Improved Windows 64-bits support.
Improved table with information about hives in "Defrag Analysis".
Fixed memory dump in "Defrag Analysis".
Fixed bug when closing "Get Registry Information" window.
Added new languages: Portugu s-Portugal, Fran ais, Deutsch and Magyar.
Minor bugs fixed.
GUI improvements.

- Do Quicksys RegDefrag run on Windows Vista?

Yes. It is compatible with Windows Vista.

- Do Quicksys RegDefrag run on 64-bit Windows?

Not tested yet.

- Does Quicksys RegDefrag support command line?

Yes. The syntax for the RegDefrag command line is:

QREGDEFRAG.EXE -defrag [-noprogresswindow] [-reboot]

-defrag
Defrag process operates in "silent mode" and enables the other switches.

-noprogresswindow
Hides the progress window during defragmentation. (optional)

-reboot
Automatically reboots the computer when defragmentation of the registry is complete. (optional)

- Do I need to uninstall the old version to install new version?

No. You can install newer versions over the top of older versions.

- Can RegDefrag be installed silently?

Use a /SILENT or /VERYSILENT (no progress window) parameters when you run the installer.

- Do I need to be an administrator to use RegDefrag?

Yes. You have to be an administrator to install and use RegDefrag. The license of this windows utility software is Freeware, you can free download and free use this Windows Utility software.