iNet Protector
With iNet Protector you can restrict access to the Web and password protect Internet connection. You can restrict internet access at specified times or on demand. You can disable connection completely or limit Internet to work with allowed programs and services only. ... Timer allows you to disable Internet connection after specified amount of time. ... In order to fully enable Internet access, user defined password must be entered. ... You can easily schedule Internet availability. ... Very useful for parents and business owners.
http://www.blumentals.net/download/inetprot2.exe - 1Mb - Download - Screenshot

IE Internet Security
IE Internet Security is a password-protected Internet security utility that customizes different features of the Internet Explorer Web browser. It allows you to disable abilities to change your web browser settings, restrict access to certain tabs of Internet Options dialog box, as well as... Due to multi-user support, IE Internet Security gives you a great ability to customize the Internet Explorer web browser for each user personally. ... It lets you disable certain menu items and buttons and prevent others from editing your Favorites.
http://www.softheap.com/download/iesecurity.zip - 1Mb - Download - Screenshot

1st Security Agent Pro
1st Security Agent Pro is a professional password-protected system security utility to secure Windows PC and restrict access to its key features. 1st Security Agent Pro offers an administrative support for controlling access to your PC and changing user access level. ... Built-in Internet Explorer Security enables you to customize different aspects of the Internet Explorer Web browser, it lets you disable individual menu items, prevent others from editing your Favorites, disable downloading and installing files from the Internet, disable individual tabs in the Internet Options dialog, as...
http://www.softheap.com/download/adminpro.zip - 1Mb - Download - Screenshot

Bulletproof Public PC
Bulletproof Public PC is a comprehensive solution you can use to produce public PC and kiosk desktop terminals that are intended to work without supervision. Completely disable access to the local files and give the full access to the necessary applications only. ... Control access to the applications installed on your PC workstations; allow using Internet Explorer, for instance, and disable all other software. ... User profiles and time-locked codes are also supported to allow selected users to access workstation for a given period of time only.
http://www.pc-safety.com/download/bpppc.zip - 3Mb - Download - Screenshot

Lockout Desktop Security
Lockout Desktop Security software brings you many ways to secure and lock your desktop. You can define different sets of permissions and restrictions for specific users and groups, control access to certain applications, restrict when your PC can be used, restrict CD usage, log Internet usage,... Disable Ctrl + Alt + Delete while in protected mode. ... Log all internet sites visited. ... Disable any window / program from being displayed. ... Disable or restrict display, network, password, printer & system control panel settings.
http://www.dynamicdesigns.co.uk/lockout/lockout.652.exe - 3Mb - Download - Screenshot

System Protector
Some of the program options are:Customize your Control-PanelCustomize Display PropertiesHide/customize Network settingsCustomize Start MenuHide all drives in Control Panel (A:\, C:\, D:\)Customize your Video AdapterCustomize your Active DesctopChange Computer Owner InformationChange Windows... It`s recommended to use this option with "Disable Command Prompt" and "Disable Registry Editor" options. ... Free screen-lock program is included.
http://www.unix-bg.org/demos/spdemo.exe - 2Kb - Download

Internet Kiosk Pro
Internet Kiosk Pro turns your PC into an Internet kiosk public access workstation. Completely disable access to files and software installed on your PC and give full access to all necessary applications user should use. Create a workstation for a public place and give strangers free access to it... Internet Kiosk Pro supports several security modes such as username and password authentication, time-locked code to allow users to access workstation for a given period of time only and a combination of both.
http://www.emailarms.com/downloads/zip/kdsk.zip - 3Mb - Download - Screenshot

Advanced Internet Kiosk
Advanced Internet Kiosk is intended for building Internet kiosks, public access PCs, or in-store terminals; disable access to files installed on your PC and prevent users from changing PC settings; give full access to only necessary applications including Internet Explorer. ... Advanced Internet Kiosk is also ideal for home PCs to limit children activities and prevent important files from being accidentally damaged. ... It will give many people free access to the workstations you create, but none of them will be able to damage (whether accidentally or intentionally) vital system files or...
http://www.softstack.com/download/advink.zip - 3Mb - Download - Screenshot

1st Security Agent
1st Security Agent is an excellent password-protected security utility to secure Windows-based computers. It works under any Windows platform and offers an administrative support for controlling which users are allowed to access your computer and the level of access each user may have. ... Additionally, you can: disable Start Menu items, hide local and network drives, disable the DOS prompt, boot keys, real DOS mode, Registry editing, taskbar, task manager, and network access, hide desktop icons, and much more.
http://www.softheap.com/download/newadmin.zip - 1Mb - Download - Screenshot

IEJet-Popup Killer and Ad Stopper
It is a compact and efficent plug-in of Internet Explorer. It has the following features: Block the annoying popup ad/ads windows;Block Messenger Spam(which is getting popular today);Block Macromedia Flash;BOSS KEY to minimize/close all IE windows within 1 second;Alternative ways to disable... It makes you surf on net more comfortable and smoothly, TRY IT OUT TODAY!!!
http://iemate.retsinasoftware.com/iemate.exe - 358Kb - Download - Screenshot