I downloaded the release candidate of Vista Service Pack 1 yesterday and was prepared to wait till its public debut next week before writing about it. But after upgrading a few machines here and doing some tests, I changed my mind. If Microsoft’s decision to ditch the WGA kill switch in SP1 didn’t convince you, would you be interested in a 300% increase in tripling your network file transfer speeds?
As you can see, the file transfers under Vista SP1 were dramatically faster than the Vista RTM times. For the directory full of many small files, the performance increasethroughput was more than 300%; for the large files, the speed increase was roughly 260%. Note that you can expect similar results when transferring files from Vista to systems running Windows XP or Windows Server 2003.