Microsoft slims down Windows updates
BetaNews | at | by Mike
From here on out, downloads from Microsoft Update and Automatic Updates will seem just a little bit faster. That is because Microsoft has released a non-security "critical" Windows update that places a permanent copy of the Package Installer for Windows on an end user's computer.
As a result, the footprint of downloads is made significantly smaller. The Package Installer for Windows, version 6.1.22.4, may be obtained through Microsoft Update or the Microsoft Download Center before it is made mandatory in the near future.