The 1.0 version of FourDesktops2 is provided as a free download on our website. The software lies within Desktop Tools, more precisely Multiple Desktops. This program is an intellectual property of CO3 Software.
From the developer:
FourDesktops enhances your productivity by providing an easy way to organize your work into separate tasks or stages. By organizing related programs and documents onto their own desktop, you can streamline and un-clutter your virtual work environment.
You may want to check out more software, such as Multidesktop, veeeb or Virtual Screen Maximizer v.0.2.1, which might be similar to FourDesktops2.