Dexpot is a free for private use Windows application that offers up to 19 additional work spaces to spread out your work so you can run certain applications on each virtual desktop. Each desktop can run a different application without interfering at all with any of the others. Also, one can configure each desktop separately by applying different icons and wallpapers and associating different sound clips with each of them. Drag-and-drop is also supported for moving windows between desktops. Just select the file(s) that you want, drag and drop it to the required desktop on the window switcher (window switcher is shown in the first image of this post). You can set up particular windows to appear on all desktops.I usually go for 4 virtual desktops on both Ubuntu (Ubuntu has built-in multiple virtual desktops) and Windows: keep Firefox on one desktop, at work I always keep my email on another desktop and at home: my music player in full-screen, maybe play a game on another one and a forth desktop for random activities and / or running Photoshop.
Among other features, Dexpot can: switch from desktop to desktop with a simple keyboard shortcut - either Windows Key-Left or Right (these are customizable), pre-defined transparency levels for certain apps/windows, fully configurable hotkeys and screen edges, preview all desktops in a similar fashion to Leopard's Spaces, transparency, always-on-top, and the ability to minimize applications to the system tray.Configure Desktops allows you to change the properties for each of the virtual desktop. For example, you can have one virtual desktop that runs in 1024 x 768 resolution and another in 800 x 600 resolution.
Dexpot also comes with a Desktop Manager tool which dynamically changes icons to display the active program on each desktop.
For full features, more screenshots and download, visit Dexpot's home page.
