30 Oct 2009 at 11:40 - 6
I have been playing Guild Wars on Windows 7 for the last couple of months (Yes, I got it before it came out. The full version, not that demo crap) and it has been working very well.
The reason for the quote: "not officially supported at this time due to the fact that the game requirements have not been updated to list Windows 7" may be due to the fact that Vista requires far more resources than Windows 7. Or they just haven't gotten around to testing the game on it. (The now-limited Guild Wars 1 staff makes things a little slower.)
To put it simply...
-I had Vista. When idling, it would use a minimum of 2GB RAM, at all times.
-I have Windows 7. When idling, it will use less than .5GB RAM. That's zero-point-five.
Due to Vista requiring more resources, they may have had to tweak the "game requirements", or something along the lines of that. If you want official answers, I say open a ticket to a GM, or just wait for them to "officially support" Guild Wars on Windows 7.
(And, yes. Windows 7, along with Windows XP, are both far superior to Vista. I have not had problems with Vista, it's just a big resource hog. Editing/Recording/Live Broadcasting of my videos just gets annoying slow with Vista.)