l_b_rex

It may not be possible as vista was created to have maximum security, but I believe what I told you is faster. I may be wrong, have you tried it though?

Or you may need to use the elevated command prompt by

in "start search" type cmd, then it will appear abve it in the program list, now right click that cmd and select "run as administrator" and then try.

Even to try ipconfig /release requires this elevated command prompt method.
Let me know if that works.