Microsoft released their next Service Pack for Vista. It
comes in two flavors and requires that SP1 is installed before
installing SP2. The update requires that SP1 is installed before
installing SP2 and is available in two flavors:
an x86 installer for 32-bit versions
of Windows Vista and Windows Server 2008, and
an x64 installer for x64 releases
of those operating systems. The former is a 348MB download, while the
latter weighs in at 577MB. Aside from support for
new standards and miscellaneous new features,
the service pack also includes all patches and hot fixes released since
SP1. Microsoft points out that SP1 is a "prerequisite" for installing
SP2. Microsoft is expected to post the bits to Windows Update in the
coming weeks but if you are eager to install SP2 today then use the
download links.