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Ever wonder what's in a definition update?

Ever wonder what's in a definition update?

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And what the various files in the update do? And what the different types of udpates are?

If you're reading this, I bet you have. And our friends over on the CSS team have authored a KB article (977939) that answers all those questions. You can find the article here: http://support.microsoft.com/?id=977939

Happy reading!

Comments
  • Is any possibility to make applying updates less memory consuming? I saw in task manager nearly 240Mb for MPSigStub working set got allocated on 2xXeon 3Ghz with 6Gb DDR2 memory and Windows 2008R2 x64 and FCS. It lasted 1-2 minutes.

    On old P3-800 laptop with 384Mb SDRAM memory and Windows XP SP3 with MSE 1.0 update process consumes nearly 160Mb and lasts 10-15 minutes.

  • Hello!

    You should open a support case for these occurrences - using such large amounts of memory for updates is not normal.

    You can view our support options here:

    http://support.microsoft.com/oas/default.aspx?gprid=12632

    Thanks!

  • Thanks for suggestion. But AFAIK our company is not the customer of Forefront. I've installed it in /NOMOM mode.

    I'd like to know if running current mpam-fe.exe or mpam-fex64.exe will apply update smoother than applying WU patch.

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