Vista Networking issue "Class Not Registered"

I have a fairly new Vista Ultimate install running on an Athlon 64 processor with 2GB memory.

I have lost all ability to view any network adapters. See pictures here:

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I cannot adjust any NIC settings. Anyone have a clue of what I can do? I went back to my last system restore and it's still not helping. I can only guess it was an update I installed. This has been an issue for about two months.

I cannot roll back drivers because I don't have any older drivers.

I have tried to re-register:

regsvr32 netshell.dll
regsvr32 netcfgx.dll
regsvr32 netman.dll
regsvr32 firewallapi.dll

UAC is off, and it's been off since day 1.

Can anyone help me?