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    Join Date
    Oct 2005
    Mesa, AZ

    Default [SOLVED] Prevent Database Problems - Avoid Feature Update 2020 & These Updates

    [EDIT June 16, 2020 - In our testing here, we found that the KB4560960 prerequisite for the Windows 10 Feature Update 2004 also has the bad Jet Database engine. We're trying to find a way to have the 2004 Feature Update installed without having any of the KBs with the bad Jet Database engine. For now if you have Scheduler avoid this KB and the 2004 update.]

    [EDIT June 11, 2020 - Two customer report having received KB4549951 and removing that also "fixed" the Jet Database problem]

    [EDIT June 19, 2020] - One of our customers describes how to replace the broken DLLs with the earlier ones that work. You may need to do this if you cannot remove the Window Update that broke it.

    [EDIT Aug 13, 2020) Here is the workaround discussion thread for this, in case you are interested. William added some info today.

    June 16 - We just did a second mass mailing to all customers on this. If you haven't seen it, please have a look now.

    ALERT UPDATE: ACP Scheduler and Windows 10 Updates (June 16)

    It affects Windows 10 1903 and 1909. This "just started happening" in mid May, when the KB4556799 Windows Update was released. We haqve discovered two other variants of this, one which is a pre-requisite to the new Feature Update to Windows 10 version 2204. If you encounter an error saying the Scheduler database is not in a recognized format e.g. Cannot open database. It may not be a database that your application recognizes or the file may be corrupt, and you see that the file SchedulerData.mdb (in Program Files (x86)\ACP Scheduler) is like 2Gb, here's how to recover:

    How to Recover:

    Run the
    JETCOMP utility located in the Scheduler (8.3) install folder under Program Files (also attached if you are on an older Scheduler version, it has been confirmed to be happening with earlier versions). Details are in the Scheduler 8.3 Help under Advanced Features (sorry about the giant font in the warning). Be patient it may take many minutes:

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    How to Prevent Future Problems: See the instructions in the mass mailing we just sent (June 16)

    If you cannot remove the update or if you got the Feature Update for Windows 10 Version 2004: See the instructions in this post (Windows skills needed)

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    Last edited by Bob Denny; Aug 13, 2020 at 23:25. Reason: Updated info from the last couple of weeks
    -- Bob



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