Thanks Zanshin - Your post lead me to try more and yes - it works. I used wrong archive, whre DXG bin was missing, and thus no update possible.
Get usbnetwork work on Windows 7 64 Ultimate (with several BSOD'ds before right config), to find out that Registering doesnt work over usbnet
(there are many complaints about it in blogs and forums). God knows what and why is blocked...
Thus it is still impossile to use rowser, collections, password, etc...