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MDAC/Jet installation is not working 

Wayne Hewitt
Wayne Hewitt
Posts: 36


4/12/2022
Wayne Hewitt
Wayne Hewitt
Posts: 36
I haven't used SL Photo Classic 4 for several months.
Tried to start it, got the error message "StudioLine couldn't open your database, because your MDAC/Jet installation is not working. Your system has an apparent mix of different versions for these components. Details can be found in the logfile."
in a popup with [Exit] [More Information] [View logfile].
[More information] and [View logfile] to do do anything.
Researched error, found a repair for MDAC/Jet Installation in Major Geeks.
Ran the repair.
Tried Photo Classic 4 again.
Same results but it took it somewhat longer to return the error message.
So far as I know Photo Classic is up to date as is Win 10 Pro
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Andy Schmidt
Andy Schmidt
Administrator
Posts: 105


4/12/2022
Andy Schmidt
Andy Schmidt
Administrator
Posts: 105
Dear Wayne,

It likely means some other third-party software has installed outdated, or "cleaned up" individual, MDAC components, or messed with class definitions in the Windows registry. Unfortunately, since MDAC/Jet (ADE) has become a built-in component in the recent Windows Versions, any "fault" there is no longer a matter of simply reinstalling MDAC - but might resolve itself only after a clean Windows install.

You could check, if your StudioLine Data Folder (e.g. C:\StudioLine4 Data\Log\) does have log files matching today's date and forward those to us via email. There is little we can do, but maybe there's some additional clue or name of a DLL that the log file happens to reveal.
edited by Andy Schmidt on 4/12/2022
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