Advanced System Optimizer 2.2
ASOv2 has more than 200 tweaks for customizing Windows and supercharging your PC's performance. New features include a spyware detective, an icon manager and a comprehensive backup tool. You can back up the registry and restore it if it's damaged. The system cleaner removes junk and obsolete files from the system. The registry cleaner ensures that invalid information is removed, and the registry defragger helps you get maximum speed from your PC.

PC Security Tweaker 8.0
PC Security tweaking software to tweak Windows-based computers. Tweak access to lots of Control Panel applet functions, enforce users to use separate system profile folders, disable selected Start Menu items, lock and protect disk drives in My Computer, disable the DOS and command prompt, interruption boot keys, real DOS mode, Registry editing, taskbar, task manager, and network access, hide desktop icons, and much more.

iHide 1.3
This application is a container to any program in your computer system to its shell by means of dynamically created tabs. iHide then hides instantly the opened programs currently running on its tabs with a set of hot keys (or rather secret keys). The hidden programs do not show their identities on the taskbar or anywhere on your desktop.

PC Optimizer Pro 4.5
A Powerful Software that Tweak Enhance Repair & Protect performance of your Computer. It prevents your PC from crashing, annoying error messages and protects privacy. Has ability to Scan & Fix Registry Errors, Clean Tracks and Internet Activities, Shredding unwanted files, Managing System Startup & Uninstalling Safely any unwanted software. It's highly rated Registry Optimizer uses Advance Technology to Scan & Fix Registry Errors.

Vispa 0.2.7
Vispa is an open-source software that easily allows its user to tweak Windows Vista to disable all communication with Microsoft servers, increasing privacy and security, aswell as improving the general performance.

SystemCop 1.2
SystemCop is a universal, flexible and powerful tool for tuning and optimizating the work of the Windows operating systems. SystemCop allows you to change a great number of standard and hidden (which are not available for editing by standard Windows tools) settings of the Windows operating systems. SystemCop is a "control center" of your system. With this tool you can change the settings of your system centralized from one program only.