AutoCAD 2009 comes with Quick View Drawings so not sure this free tool will keep being available in next version or not. But it does work for 2007-2009.
Even though the Readme says other things (only for 2007) I've been able to use Drawing Tabs in AutoCAD 2008, AutoCAD 2009, ACA 2008, ACA 2009, other verticals as well as on Windows Vista. It's a great little piece of freeware but there is still no 64-bit support.
And in AutoCAD 2009 with the right click menu showed.