Install-Block

Installing and uninstalling any software on your system will hence need to pass through password authorization with Install-Block.
No one can install or uninstall any software on your system without your permission. Before installing or uninstalling any software you need password authorization provided with this tool. A perfect solution for parents, employers, and teachers allows in keeping their system safe and protected. This amazing blocker prevents users from access to: start menu, task manager, control panel applets, Internet options and many other Windows features. With this tool you can provide access denial to other applications like: instant messenger, games, web downloader and so on. You can also administer all your systems and change settings on all networked computers. The reliable tool encrypts your files using Blowfish technology.
Install-Block this real time blocker can also disable logging off or shutting down of your system.

Install-Block allows you to require a password to be entered in order for new software to be installed on your computer. An ideal solution for parents, employers, and teachers who seek to secure their PCs, Install-Block can protect you from software potentially harboring adware or spyware. The program can also return to you the productivity lost through the use of games (be it Solitaire or games on the web), instant messaging programs, MySpace, and other distractions. In addition, you can prevent harm to your computer by denying access to system tools and other Windows features. Virtually any program, individual window inside an application, or website can be restricted from use. When someone tries to access a feature that the program administrator has chosen to block, a password prompt is displayed, and without the password the user cannot continue.
Features:
Prevent users from installing, or un-installing, any program
Prevent users from accessing the Start Menu, Task Manager, Control Panel applets, Internet Options, and other Windows features. Install-Block can also disable logging off or shutting down of the system.
Prevent children from using instant messaging programs, file-sharing programs, MySpace, or other content you find unsuitable
Prevent employees from playing games such as Solitaire
Disable the entire web browser, or choose to only stop internet downloads
Password-protect nearly any program or window that you choose
Administrators can remotely grant or deny access to a blocked program on a networked user's machine
Administer all of your systems with ease, changing settings on all networked computers
Encrypt files using Blowfish technology
Much more powerful and easier to manage than Windows' Group Policy