There is no means to update from SP3.0 to SP3.1, because ; ^+ s, o/ v3 ~0 W& }' z5 P) L - P- m/ j/ o5 b"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. "