Hi All and Support,
What I did:
I created a Acronis True Image of my working partition with Windows XP Home Edition Service Pack 2 that contains the D-Link DWA-552 1.30 Version drivers and Network Magic Version 5.1.8345.0 controlling the Adapter.
After it was finished, I updated the Wireless Card Drivers making absolutely no others changes and I rebooted the computer.
After I rebooted the computer, the signal strength is good. Before it was Very good. And I don't seem to be connecting as fast, as I was before.
Well, guess I have to restore, now., because the Voice doesn't seem to be connecting to my friend's computer through the Comcast Cable Network, as it did before the Upgrade of the drivers.