virtualbox.org

Hi,

Problem solved I found the solution.
However, but just add the shared drive (F: in my case) at:
Local Intranet in Internet Explorer (Tools > Internet Options > Security > Local Intranet > Sites > Advanced).

It removes the stupid question like "You realy wand to execute this program". (couldn't be done at UAC)
And by the way my main problem is solved. The shared drive on win 7 is as powerfull as on win xp.

Ah, that part. I've had that a few times, but now when I see the question about "you sure you want to run this from this location?" I go to the same spot, untick the first checkbox which makes the other three available and tick them. That should fix the problem on a global scale. Saves you the trouble of adding every mapped drive manually each time.