HideHelper - Hide windows and tray icons
1. HideHelper supports powerful function of defining hotkeys(Hide/Show): one is temporary hotkeys,the other is permanent hotkeys,you can Hide/Show one or a group of windows by pressing the hotkeys being attached with specific conditions 2. HideHelper can change the icon and title of any window. ... HideHelper provides the password-protection function which can lock HideHelper to ensure security of those hidden windows 8. ... HideHelper is developed by standard Windows API and optimized by good arithmetic,so it only costs few system resource In addition: HideHelper also provides a...
http://www.qwerks.com/download/7848/HideHelper.exe - 701Kb - Download - Screenshot

Buzof
Annoyed by the repeated assaults of spurious messages and confirmation prompts on your desktop? Don't let these or any other windows stress you, interfere with your productivity, or freeze your computer while you are away. Get rid of them with Buzof. ... Teach Buzof how to respond to the annoying window, and from this point on, Buzof will periodically scan the desktop and take care of the window whenever it shows up again. ... Buzof enables you to automatically answer, close or minimize virtually any recurring window including messages, prompts, and dialog boxes.
http://www.basta.com/Software/SetupBuzof.exe - 336Kb - Download - Screenshot

TransWin
TransWin is a tiny yet powerful tool to help you to set any or all of the windows on your desktop to be transparent. You can set any window to be transparent or to be disabled the transparent, you even can set the Start Menu and the task bar to be transparent. ... TransWin also supports to add the program path to force all the windows created by a program to be transparent, or add the filter string to make all the windows that matched the filter string to be transparent. ... It supports to set the transparency value for all or any of the transparent window, which from 1 to 254.
http://www.easexp.com/transwin/transwin.exe - 34Kb - Download - Screenshot

Window Magician
Imagine, that your boss comes into your office when you are having a chat with your friend or reading news on the news site. What will be his reaction if he sees what you're doing? How do you think? And what happens with your career after that? Do you like people who look from behind your back... It can hide windows, icons in the system tray, shut down applications or run your screensaver by pressing one hotkey. ... You can add the applications from the running processes or file on the disk to be hidden and change their behavior: to shut down, to hide their windows, to hide their system...
http://www.windowmagician.com/files/setupwm.exe - 671Kb - Download - Screenshot

WiSi - Window Sizer
WiSi is a small little tool for resizing windows to fixed values. Thats usefull for example if you want to test your homepage with different screen sizes without switching the resolution. Only select yourr browser window with the "sniper" from WiSi and press the set size button. ... Thats it.
http://www.fantastic-bits.de/download/files/wisi.zip - 412Kb - Download - Screenshot

WindowWatch
WindowWatch is a tool that developers and Webmasters can use to quickly preview the results of their efforts. It locks onto whatever window is currently active on your desktop and lets you manipulate it in a variety of ways, displaying it in various screen resolutions. ... WindowWatch also now includes a new active window measuring slider for precise control over the test resizing of your windows, screens, applications, and images. ... You can set rulers to relative or absolute modes. ... New features include active desktop rulers with the ability to "lock" to the active window.
http://www.brewcitysoftware.com/files/windowwatchsetup.msi - 231Kb - Download - Screenshot

Transparent Windows
Martin's Transparent Windows adds a transparency option to the system menu of all programs, making it possible to obscure any window on your desktop. People looking over your shoulder, want to use MSN descreetly in the office...
http://www.martinutils.com/transparent.exe - 3Mb - Download - Screenshot

Switch Window
Operating systems have come a long way from primitive file management tools to sophisticated home and office computing environments featuring a multitude of tools intended to ease up our life. Most of us have got used to the fact that each and every action within the operating system can be... However, most of us have faced a situation when we need to keep dozens of windows open - interrelated documents, calculator, e-mail client, several web browser windows - all mess up the Taskbar space resulting in poor computing experience and growing frustration.
http://www.desktopboosters.com/download/common/SwitchWindowSetup.exe - 708Kb - Download - Screenshot

enable Virtual Desktop
enable Virtual Desktop is the next generation virtual desktop from Enable Software. Features include: customizable desktop size, hotkey desktop switching, mouse and window selectors, fully customizable appearance (including different wallpaper/patterns/colors for each desktop). ... Assign rules for windows, including sticky windows (window appears in all desktops) and the initial desktop, size and position of windows. ... Also includes integrated screen dump facility to dump images to the clipboard or directly to file.
http://www.enablesoftware.com/evd2.2.8u.exe - 3Mb - Download - Screenshot

Window Security Toolkit
Get over 51 Advanced Security Settings for Windows with this power tool ! Window Security Toolkit helps you make windows totally secured by Providing access restrictions on the control panel, display settings, network, passwords, users, dos, games, internet, memory, printers, desktop, system,... An excellent program if you don't want others to be messing up with your system. ... Also Includes SHA1 160 bit and MD5 File Encryption plus Ultra Desktop Lock.
http://www.dmisoftware.com/wscrett.exe - 2Mb - Download - Screenshot