I've found the registry difficult to use.
Under Windows Vista, I'd try this method instead to see if it could locate the needed values:
Click on a symbol usually at the bottom left of the screen - usually either a Start button or a circular Windows symbol.
On the Start Search line, type Device Manager. When the Programs list above that becomes just one item with that name, click on it.
That program may need your approval to start at all; if so, approve it.
Click on the + sign before Network adapters to see a list of network adapters on your computer. I have just one, so that is the obvious choice of what to double-click on next. Click on Resources to see the memory ranges and IRQs it uses, or various other tabs to see if they will give you some other value you
want.
