WiseDesktop
WiseDesktop is an award-winning virtual desktop manager for Windows with user-friendly interface and useful features. WiseDesktop creates four virtual desktops and only one is visible at a time. So, when you switch desktops, all visible application windows just disappear from the screen and from... Also you can set custom wallpapers for each desktop, move application windows from one desktop to another by drag'n'drop, keep an application window on all desktops, close an application window from the WiseDesktop main window, change the order of applications on the Windows taskbar etc.
http://wisedesktop.com/download/WiseDesktop.exe - 1Mb - Download - Screenshot

Chimera Virtual Desktop
Is your taskbar cluttered? Getting lost in jungle of windows? Do you need a simple and versatile solution for creating distinct work areas for your different tasks? Create up to 9 separated screens, so called virtual desktops. Move applications between desktops easily! ... Distinct wallpapers, desktop and quicklaunch icon sets per desktop! ... Stable and reliable solution with excellent online support! ... Use tabs, hotkeys, mouse gestures, drag-and-drop interface, system menu integration and other methods to manage your desktops and windows.
http://www.chimera.hu/dl/ChimeraVirtualDesktop.exe - 1Mb - Download - Screenshot

Innovatools Desktop Commander
Return to those nostalgic days when your taskbar and traybar had a clean and clear look! Innovatools Desktop Commander gives you the chance to change the look of the taskbar and traybar in a way that will allow you to work more efficiently. It allows you to keep the most used applications,... Innovatools Desktop Commander also helps you protect your privacy. ... This way, the taskbar and traybar can look and function exactly like you desire. ... With a simple shortcut you can hide all the icons and windows or just some of them and you will be able to prevent the prying eyes from finding...
http://www.innovatools.com/download/invdc.exe - 1Mb - Download - Screenshot

PictoWin Multi desktop manager
Robust awards winning PictoWin multi desktop manager for Windows adds unlimited number of virtual desktops to your PC and helps you reorganize your workspace. This reliable multi desktop manager for Windows(r) does not only switches desktops, its numerous features help you organize efficiently... User can drag and drop applications from one desktop to another, switch desktop and switch directly to any application in any desktop. ... Only applications icons of applications running in current virtual desktop appear in the taskbar.
http://www.cyhproject.com/downloads/PictoWin20.exe - 2Mb - 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). ... Contents mode displays an exact miniature replica of your desktop, while you can set up desktop themes and global hotkeys. ... Assign rules for windows, including sticky windows (window appears in all desktops) and the initial desktop, size and position of windows.
http://www.enablesoftware.com/evd2.2.8u.exe - 3Mb - Download - Screenshot

IBDesk
Nice software which enables multiple desktops in Windows. Desktop switching is done via tray popup menu or customized hot keys. Provides different display settings and separate autorun lists for each desktop. All settings are fully customized. IBDesk simplifies navigation by preventing... It widens your workspace, makes your work more comfortable and increases productivity.
http://www.ibdesk.com/download/ibdesk.zip - 712Kb - Download - Screenshot

12Ghosts SaveLayout
Keep changes to your desktop icon layout once and forever. This is the final answer to the Windows desktop imperfection, keeping a strong backlog of icon layouts. Restore at resolution switching, or when the taskbar is moved. Transfer icon layout between Windows versions and PCs. ... Comes with a one-click accessible desktop simulation tool, and a taskbar tray application launcher. ... Optional tray icon, hotkey, and command line options for automated backups.
http://12Ghosts.com/download/12savelayout.exe - 2Mb - Download - Screenshot

ManageDesk Virtual Desktop
Is your computer desktop getting overcrowded? Are you having difficulty quickly accessing software applications? Then it's time for you to consider trying virtual desktop software. ManageDesk also includes powerful tools for increasing your productivity: - Independent applications and windows... The taskbar shows only the applications opened on the current desktop, greatly reducing the clutter. ... ManageDesk solves desktop clutter problems by providing the most robust multiple desktop software ever.
http://www.managebytes.com/managedesk.exe - 2Mb - Download - Screenshot

Task Commander
Modern operating systems offer many cool interface features to make our lives easier. However, the ever-increasing number of various programs we use on a daily basis makes the task of managing open windows, running programs and processes way too complicated and time-consuming. ... Tight integration with desktop context menu, taskbar, IE and Windows Explorer makes advanced applications management universally available system-wide! ... Introducing Task Commander by Resort Labs, the unique Windows task management and application launcher\maintenance solution capable of freeing up valuable...
http://www.resortlabs.com/taskcommander/tc_setup.exe - 2Mb - Download - Screenshot

2X ApplicationServer
Tunnel any Windows application onto remote desktops and save on administration & support With 2X ApplicationServer for Windows Terminal Services companies can reap the benefits of thin client computing without having to switch the network infrastructure to a thin client OS. ... 2X ApplicationServer features: Publish applications, not a whole desktop Seamless integration with local desktop & taskbar Publish applications based on username, group membership or IP Coming soon: Tunnel to Mac and Linux clients too.
http://downloads.2x.com/applicationserver/2XAppServer.exe - 2Mb - Download - Screenshot