Please find enclosed the API documentation for Autodesk Design Review 2009 which is not included in the product install itself.
I have enclosed the documentation as CHM as well as PDF file. Please ensure to save the CHM file to your local disk, else you might experience viewing difficulties - this is a known Microsoft issue, whereas network based CHM files cannot be viewed correctly.
The PDF file is really a shortcut for those who prefer to view it outside of the "Microsoft Help UI". Please note that we managed to convert all the content correctly, yet you might find some incorrect numbering of the chapters. The actual API content is correct.