When extracting the installers for Autodesk products, keep the destination folder name as the default. i.e. C:\Autodesk.
In some cases, if you choose a non-default name, when the files are extracted, it will exceed the 256 character limit.
For example, Autodesk_Moldflow_2012_Multilingual_Win_32-64bit_Linux_64bit.part1 is 66 characters long. In this situation, you will get the following error:
Thanks to Doug Lauritsen for this tip.