no internet connection

[funguy]

After removing all the spyware, trojans infected on a friends computer, by
various antispy programs, the internet connection no longer works.
The system now seems free of viruses, but after removal it has caused loss
of connection.
After attempting to access the windows firewall via control panel to check
what may be blocking, it says error, unable to open.
System restore also has a problem where as it also seems not to be working.

Before the internet connection went down, we logged on to windows one care
site, downloaded the necessary files and proceeded to do a scan.
It stopped scanning at 51% with an error message.(not sure what message it
said as I was not there at the time)
After that, no internet connection.
Tried reloading his isp software, unable to connect to modem.

It does appear to me that there is some sort of corruption in the windows
firewall causing all this, is there a work around it, or a clean wipe of h/d
his only fix.

Running xp sp2
dual core cpu, 2 gb ram

Programs used to clean were, spybot, spyware doctor, super anti spyware,
adaware.
Anti virus protection is nortons.

Any help is appreciated.

Cheers.

 

[The Real Truth MVP]

Try my Winsock Repair network tool. Download it here
http://pcbutts1.com/downloads/tools/tools.htm

 

[Mick Murphy]

Right-click on the Norton Task Bar Icon> see if it is blocking Internet.