Just upgraded from 2011 to 2012 sp2.0 and now the .step nor .stp file types will launch SW.  I tried "open with" and SW is not an option.  I browse to the SW exe and select that but it doesn't stick.  I'm guessing that when we did a complete uninstall (including registry files) that association was lost.  I can't understand why I can force the association. 

Anyone else have this problem?