Microsoft Tun Miniport Adapter cannot start

I am getting a "Code 10" (this device cannot start) and a dreaded yellow
question mark for something called "Microsoft Tun Miniport Adapter #2" in the
Network Adapters section of my PC's Device Manager.
I run Win XP PRo SP2 and I have on-board LAN (Intel PRO/1000 CT). I connect
peer-to-peer to a LAN via a switch, and I have Internet access through a
gateway router.
Despite the fact I have a modem connected to my PC, there are no connections
present that could be using it. The only other connection present is the 1394
Adapter (no wireless networks etc.) I do not need to have any network bridge.
I seem to have full LAN and WAN functionality - I am simply annoyed by this
discrepancy.
I checked out my registry, even tried to remove "tunmp" from
HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Services (and ControlSet002 etc.),
but to no avail...
I will greatly appreciate your expert advice. Please help me.

Originally Posted by Zazula

I am getting a "Code 10" (this device cannot start) and a dreaded yellow
question mark for something called "Microsoft Tun Miniport Adapter #2" in the
Network Adapters section of my PC's Device Manager.
I run Win XP PRo SP2 and I have on-board LAN (Intel PRO/1000 CT). I connect
peer-to-peer to a LAN via a switch, and I have Internet access through a
gateway router.
Despite the fact I have a modem connected to my PC, there are no connections
present that could be using it. The only other connection present is the 1394
Adapter (no wireless networks etc.) I do not need to have any network bridge.
I seem to have full LAN and WAN functionality - I am simply annoyed by this
discrepancy.
I checked out my registry, even tried to remove "tunmp" from
HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Services (and ControlSet002 etc.),
but to no avail...
I will greatly appreciate your expert advice. Please help me.

I finally solved this problem:
http://www.techsupportforum.com/showthread.php?t=101894