Do AutoCAD 2004/2005/2006/2007/2008 third-party applications work with AutoCAD 2009 32-bit?
Third-party add-on applications based on Visual LISP® or AutoLISP®, VBA, ActiveX®, and ObjectARX® programming languages and developer tools for AutoCAD 2007 are compatible with AutoCAD 2009 32-bit. AutoCAD 2009 is binary compatible with 2007/2008 and has the same DWG file format. Third-party applications for AutoCAD 2004/2005/2006 based on Visual LISP or AutoLISP are also compatible with AutoCAD 2009. Third-party VBA based applications for AutoCAD 2004/2005/2006 are compatible with AutoCAD 2009 32-bit in some cases, but there are instances in which those applications will need to be modified. For more details on AutoCAD 2004/2005/2006 VBA-based application compatibility, visit the AutoCAD Developer Center. Third-party applications for AutoCAD 2004/2005/2006 based on ActiveX and ObjectARX will need to be upgraded to be compatible with AutoCAD 2009. Check with your application developer/supplier regarding availability of applications built for AutoCAD 2009. You can find additional detail