It looks like I'm being misunderstood. I don't think that I would have to go so far as to use the command prompt to edit my registry.
I'll provide an example of what I'm essentially looking for:
Network Connection - Delete - Vista Forums
I'm essentially looking for Win 7's equivalent of the window shown in in Step 5, or at the very least the same options as it. I just want to delete whatever knowledge my computer has of ever connecting to any network in the first place, inserting an ethernet cord into the port, and Windows to think that it's the first time it has ever seen one. There has to be a way to do this without tweaking the registry in any way. Again, I appreciate any help that can be offered.