Autodesk does not officially distribute portable versions. Any "portable" AutoCAD is a third-party repack. According to Autodesk’s EULA, installing the software on a USB drive for use on multiple computers without separate licenses is a violation.
AutoCAD 2008 PL Portable is a modified version of the original software designed to run without a traditional installation process. The "PL" designation indicates that the user interface, menus, and help files are in the Polish language. Because it is "portable," the entire program can be stored on a USB drive or a cloud folder and launched on almost any Windows-compatible computer. Key Features of the 2008 Version Autocad 2008 PL - Portable
In the Polish design market, AutoCAD 2008 PL is frequently used by: Autodesk does not officially distribute portable versions
Polish technical universities (Politechnika Warszawska, AGH Kraków) still teach drafting fundamentals using older versions because the core commands (LINE, TRIM, EXTEND, HATCH) have not changed in 20 years. AutoCAD 2008 PL Portable is a modified version
Before downloading a portable repack, you should know exactly what the software can (and cannot) do.