MultiTabber!

Dexpot turns your monitor into up to 20. It creates and manages virtual desktops and enables you to work far more efficiently and comfortably with many simultaneously opened windows on Windows 95/98/ME and NT4/2000/XP/2003/Vista (incl. x64).

Virtuoz was designed to be a minimal and robust program that allows to have more than one desktop on Windows. It was inspired by Sysinternals Desktops, but uses a different approach, which doesn’t impose the limitations which Desktops is bound to.