Most of utilitties and apps running under Vista are working correctly, with the exceptions:
. Installations sometimes cannot be called direct from IE (run option), but needed to be saved on local folders, and then to be called manually.
. Desktop items context menu cannot be easily (or blokced) updated. Example is cCleaner cannot add context menu on to Recycler Bin. App must be called from Programme Files.
UAC is no longer so intrusive as under Vista, that one can actually accept and live with it, as a benefit.
Installing and running in compatibility mode are not always functioning - they pretty much depend on the current installer scripts of the apps in question.
Currently running basic apps like FoxitReader, VLC, Java 6.11, Flash updates, Firefox 3.0.5 (Minefield is having tough time installing correctly and running, since it is pretty much a 32bits??? - will investigate some more)
Overall, it is a brilliant answer from Microsoft, to its critics after the snafu of Vista's implementation.