I've run the tool on about 40 different boxes now running five different kinds of windows, and every single one either said to install an Office Update (for every PC that had office installed) or to do nothing (when Office wasn't installed).
Why install the tool?
Well, Microsoft is losing the browser war. They've neglected IE for so long that even the new version that comes with SP2 isn't enough to interest people - I mean, what does it offer other than security fixes? A pop-up blocker? Mozilla's had this since day 1.
Now with AOL moving back to their own acquired Netscape brand in the new version, IE will have its market share reduced by a much larger number still.
So moving the update tool from the browser (since it only works in IE) to the desktop is a key step for Microsoft to ensure that they still have their foot in everyone's OS door. This "update finder" is just the first step.
When the new Windows Update is released it will be an application (albeit one that runs IE's API) and will likely just incorporate the GDI+ vulnerability fixes.
Right now it's a kludge because of the scope limits of Windows Update. Essentially the GDI+ update scans for things that the Windows Update can't.
You're asking pretty much "Why run a spyware removal tool when I already run a virus scanner?" - eventually these two tools will be merged into one "Security Scanner" as well.
I mean, when you get right down to it the Windows Update application doesn't actually install any updates either. It is a download enqueuer that auto-runs the downloads once you've downloaded them.
The real problem is that MS does not make all of the updates that Windows Update finds available for individual download by the user.
Surf to
http://www.windowsupdate.com with Firefox and you'll be given a link to download.microsoft.com's front page. Whoopie, that's helpful.
P.S. Please note that I am not a Microsoft basher, and I believe that there must be some people who work on these things for Microsoft that really want to do a good job, and Windows works well-
enough that I use it daily (although I use linux for all web development) for general e-mail, surfing, word processing, etc.
It's really too bad that the marketing department is running the new OS project (Codename: Longhorn) and forcing the developers to drop pretty much every reason to upgrade just so they can meet a marketing deadline set for the people who signed up for (and paid for) bi-annual OS upgrades.
They're starting to call it "Shorthorn" since it won't have the new file system, or really anything but some minor upgrades from XP, which itself was only a point release of Windows 2000 Professional.
I wonder if Longhorn (which will probably be called Windows 2007 or something equally stupid) will be dubbed version 6.0 or version 5.2?
Anyway, IT workers are going to be saddled with shoddy software for a longASS time.