download th 65**xdatx file and run it as per readme file on your PC. Will not update the engine or get patches but dats OK.
There should a internet connection available to update Antivirus software , but If you are referring to the issue where while updating McAfee doesn’t detect an Internet connection , please follow the steps below and then try updating your programs http://service.mcafee.com/faqdocument.aspx?id=TS100061
Rahul1234 sent me a private message. He has no Internet connection at all in his village. I suggested that the System Requirements for McAfee clearly state that an Internet connection is needed and that he might be best advised to use standalone products for protection although it's going to be hard to find one that will be happy being disconnected from the Internet for very long.
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OK thought he had it installed and net available nearby. Sorry.