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').
UserGuiding - Create in-app experiences with the most straightforward product adoption platform — quick implementation, lasting user engagement.
Sysinternals Desktops - Desktops allows you to organize your applications on up to four virtual desktops.
Usetiful - Fight user churn with great user onboarding. Interactive product tours and smart tips significantly improve your user retention.
9Desks - up to nine virtual desktops
Userlane - Digital adoption platform with interactive guidance for software applications allowing anyone to understand and master any software from the get-go.