http://technet.microsoft.com/en-us/windows/dd262148.aspx
SP1 is required.
I had Mac OS X, 10.5.3 on one of my computers. I downloaded a combo
update that contained all of the updates from 10.5.4 to 10.5.7 and
installed them in one package.
Does Microsoft offer combo updates for Windows? Can I go directly from
Vista [Business], no SP, to SP2 with a combo? Or do the service packs
have to be installed separately?
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