I have to say my networking skills are few, Linux just does it, and XP........ well I'm only using it because I have to and it just worked.
I did not specifically delete any network connections because there are none that I can see in the Network section, I do not recall ever having had any other than one to my work and that one one I start manually after I am connecting to the internet.
It is an always on Router not requiring any password etc, (ask my relatives
I have had this virtual machine running for years and the memory is a bit hazy as to how I originally set it up other than in Vmware I set it to NAT and could toggle the connection on or off (in Vmware at will, I didn't like XP open to the net except for the few minutes I needed access).
Okay I might be onto something, I have just tried the network setup wizard in XP and it tells me it can't find my network hardware. My understanding was the Guest Additions took care of this dept