Universal Theme Patcher - Crack uxtheme.dll, free your Windows supports 3rd party desktop msstyle themes.
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').
SecureUxTheme - A tool that removes signature verification of styles on Windows.
Sysinternals Desktops - Desktops allows you to organize your applications on up to four virtual desktops.
Cairo Shell - Cairo is a desktop environment for Windows.
9Desks - up to nine virtual desktops