Cairo Shell - Cairo is a desktop environment for Windows.
Universal Theme Patcher - Crack uxtheme.dll, free your Windows supports 3rd party desktop msstyle themes.
Talisman Desktop - Talisman Desktop is a configurable Windows shell replacement introduced in 1997 by Lighttek...
SecureUxTheme - A tool that removes signature verification of styles on Windows.
bbLean - Alternative Windows shell
bug.n - Provide views (i. e. virtual desktops) for showing only those windows, which you need to do your work..