Hi Hilmar,
>You may also want tocheck
www.iarchitect.com.
Interesting site!
>For instance, while I find the Windows Explorer really great (and satisfactory for the task it is designed for), Microsoft did do some interface errors in it.
Not only in there < g >. I've analyzed many MS applications some time ago and now again to prepare for my conference session on GUI design and noticed some places, where they didn't do a good job. But I have to say that Microsft's GUI design became really a lot better over the last years - especially regarding consistency in the interface across their different products.
Armin