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Former Member
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Applied Extra Dat got deleted from path ?

HI all,

I applied one extra dat got from mcafee through ePO &.It was showing in all the machines in the location C:\Program Files\common files\Mcafee\Engine and tray icon about as well but after three days it got disappeared from both path and about .Anybody knows what could be the reason?


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Re: Applied Extra Dat got deleted from path ?

Extra.DAT files are meant to fill in gaps left by normal DATs; once the normal DAT file includes the signature, the Extra.DAT is no longer needed.  Has it been 3 days since McAfee supplied the Extra.DAT, or longer?  I was under the impression all Extra.DAT files last 30 days from issue, but a little research now tells me that VSE Extra.DATs can last only 5 days.

More info about them can be found here:

McAfee Corporate KB - Why Extra.DAT files may not be applied KB52590

McAfee Corporate KB - Extra.DAT files are not displayed in the VirusScan Enterprise About window KB5...

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