Recently there has been a problem with the use of the "Own Database" in our DIALux 4 software. This is unusable and various error messages appear.


We found out in our test center that this problem is definitely caused by a Windows update.


Uninstalling the Windows update (KB4493509) (operating system build 17763.437) solved the problem.

Microsoft is currently working on a solution to the many problems caused by this update.


https://support.microsoft.com/de-de/help/4493509/windows-10-update-kb4493509


https://www.heise.de/security/meldung/Patchday-Nachtrag-zu-problematischen-Windows-Updates-4401005.html


These two links are only available in German.