There is no means to update from SP3.0 to SP3.1, because - O! i k6 m% D9 U7 k1 V9 v( y* t" y, ^; [5 V- P2 o
"Please note that the only difference between SolidWorks 2008 SP3.0 and SP3.1 is production support for Microsoft Windows Vista 64-bit, so it is not necessary for customers on other operating systems to download this Service Pack. "