Autodesk 3ds Max 9 service pak 1 includes a number of fixes for Autodesk 3ds Max 9 across several functional áreas, including animation, Backburner, Batch rendering, Biped, Editable Poly, editable Mesh, Hair, materiales, Maxscript, Mental Ray, Reactor, render to texture, SDK and UV unwrap.
Autodesk 3ds Max 9 service pak 2 is aimed primarily at addressing vista compatibility issues. It includes a number of fixes specific todo Windows Vista, as well as fixes across several functional áreas, including animation, Backburner, Batch rendering, Biped, Editable Poly, editable Mesh, Hair, materiales, Maxscript, Mental Ray, Reactor, render to texture, SDK and UV unwrap.
Prácticamente lo que entendí, es que el service pack 1 es para XP y el service pack 2 para vista, y entonces la extensión? Saludos.