If using Windows 98, then try booting into MS-DOS, running scanreg /restore and choose a date before you deleted this registry key. Or was it more then just a registry key?
Although you don't give the whole IP-address (like 209.130.x.y) this could very well be a valid DNS-server. Check you TCP-IP-settings. And better inform somewhere what's suspect with this line.
Hope this helps.
I deleted a file using hijack this and now I cannot get on the internet. I had my log file analyzed on hijackthis.de and this was the only entry marked "Possibly Nasty" so I had it removed. The entry was 017-HKLM\System\CCS\Services\Tcip\..\(A57C451A-CFD7-4112-863A-7DB3DDBDFA1E):Name Server = 209.130
Obviously I should have left it alone. What can I do to fix this?