In a continuing effort to provide high quality products, Autodesk has released Service Pack 2 for Autodesk Simulation Mechanical/Multiphysics 2013, which fixes or addresses a variety of issues pertaining to the program. This service pack updates Autodesk Simulation Mechanical 2013 & Autodesk Simulation Multiphysics 2013 for all supported languages.
You can download the SP2 for the 2013 software from the following link:
Autodesk Simulation 2013 Service Pack 2