Autodesk does not officially license or support "Portable" editions. Downloading these files may violate copyright laws and terms of service.
A "portable" application is a modified version of a software program designed to run without going through a standard installation process. Download Autocad 2007 Portable
Since it isn't installed in the Windows Registry properly, it may crash when performing complex renders or using specific LISP routines. Autodesk does not officially license or support "Portable"