This came about after installing Panda Software Internet Security 2008 [12.00.00]

Resolution

1. Click the Start button and select Run.
2. Enter “cmd” and press “OK”.
3. Type the command “regsvr32 netshell.dll” and press Enter.
4. Type “exit” and press Enter to close the shell.
5. Open “Network Connections”
6. Right click on the Interface causing the problems and select “Disable”.
7. Right click on the Interface causing the problems and select “Enable”.

The network interface should now be operational.