I'm not surprised... when Vista first came out a year ago, Microsoft had said that they'd be shutting down some of the techniques used to "hook" various parts of the operating system. Ostensibly this was to make the OS more secure from viruses or similar malware, but you might recall at the time that various anti-virus software vendors protested loudly since they use many of the same techniques to watch for virus-like activity.
Some anti-virus vendors chose to update their products whereas others didn't, it would seem.
Other than "Fujitsu Shock Sensor" all of the programs on the list are either anti-virus type programs or DRM type programs (that behave very much like viruses as well...).
My gut feeling is that a little more than one year after its release, Vista hasn't obtained the market penetration that XP had in a similar timeframe. But maybe I'm just remembernig history through rose-colored glasses...
---Joel