I have a question about the behavior of the Patch Management solution with reference to installing via Windows Update.

I have prepared all my 2008 patches in the solution and they are currently applied against my test collection.

I took a new machine and put my image on it. I then went into Windows Updates and applied ALL applicable patches available. The only the that was left was a Dell patch for the monitor it was attached to.

I then installed the NS Agent and after it went through its motions, it came back and reported that 2 patches were not installed (MS08-062 and KB953839). Of course the Agent did apply the patch as i would expect.

But my question is how did Altiris know of these patches and Windows update did not? I'm probably missing something very simple here, but any insight would be appreciated.