In this use, structural steel rebar provides the strength and stiffness to the concrete, while the cured cement holds the rebar stationary. Rebar alone would flex too much and cement alone would crack easily. However, when combined to form a composite, an extremely rigid material is created.
Autodesk ended Vista support in 2012 and the versions 2013 and up are not compatible with Vista. AutoCADu 2008 (and 2009-2012) compatibility applies for both 32-bit and 64-bit versions of Windows Vista Home Basic, Home Premium, Ultimate, Business and Enterprise. For AutoCAD 2007 and AutoCAD LT 2007 Autodesk has released Service Pack 2 which makes them compatible with the 32-bit version of Windows Vista.
** Also listed in the A2004 Information section of the Autocad page (..may need listing in Design Center section of Autocad page for the Design Center start up code). He uses Microsoft Front Page 4.0 and all feature syle Articles are in Sweadish and PDF. www.cadalog.com. CAD shareware (some freeware).