That is a seriously messed up extra.dat! I think there's over 260 different drivers in there.
Have you (or another admin) been manually pasting various extra.dats together? There are only two approved ways to merge extra.dats (either use the "Combine Extra.DAT Files" functionality on http://mysupport.mcafee.com or platinum.mcafee.com OR submit the files again as one submission to McAfee Labs).
Hi, extra.dat is now working. what i did is i stopped the Mcafee mcshield service and then copied the extra.dat and put into programfiles\commonfiles\mcafee\engine..
and then restarted the mcshield service. after that its showing the names of signatures in the virus scan console.it works in all machines but we need to manually copy the extra.dat file but anyways we have escalated this problem to our global team, lets see what they say. Thanks for your support.
Note: actually we have a antivirus site, from there all mcafee updates will get downloaded to our jump server on a daily basis. we copy the extra.dat file from jump server only.