System error 1075 in connecting internet with LAN Line

Hello,
I am using Windows XP Operating System and unable to use the LAN line to connect to the internet. It says an error 1075 : “ System error 1075 has occurred. The dependency service does not exist or has been marked for deletion. ” I guess this means that NetBT has to be set up which cannot be started.
The solutions I have tried based on what I have read from other forums and services seem to not work. I have also tried to fix this on my own using Windows XP installer disk but it was unsuccessful. The Windows XP installer disk, however, allowed me to restore the system but it still did not work for the restore parts.
All these have been checked in safe mode. Could anyone here help me resolve this error?
Thank you in advance.
