Instead of downloading risky repacks, you can create a portable version yourself if you own a legitimate license of 3ds Max 2009. This requires time and technical know-how but is the safest route.
The 2009 release was notable for introducing technologies that simplified iterative workflows and enhanced realism: autodesk 3ds max 2009 portable top
Only use a portable version if you possess a genuine perpetual license key purchased before 2010. Use it only on machines you own. Instead of downloading risky repacks, you can create
A "Portable" version attempts to virtualize this environment. Creators typically use application virtualization tools (similar to VMware ThinApp or Spoon) to: Use it only on machines you own
: A library for the mental ray® engine that simulates real-world surfaces like metals, glass, and wood.
Autodesk 3ds Max (any version) was designed as a deeply integrated Windows application. It registers file associations, writes dozens of registry keys, installs services (like the Autodesk License Server), and embeds itself into the Program Files structure. A true portable version is not officially supported.