VirtuaWin - VirtuaWin is a virtual desktop manager for the Windows operating system (Win9x/ME/NT/Win2K/XP/Win2003/Vista/Win7/Win10). A virtual desktop manager lets you organize applications over several virtual desktops (also called 'workspaces').

WindowBlinds - WindowBlinds is a computer program that allows users to skin the Windows graphical user interface.

Dexpot - If you don't have Dexpot yet, the new update makes it a must-have tool for Windows, adding a ton of features to your desktop that you never knew you wanted.

Cairo Shell - Cairo is a desktop environment for Windows.

Sysinternals Desktops - Desktops allows you to organize your applications on up to four virtual desktops.

bbLean - Alternative Windows shell