GroupWise 2014R2 client doesn't work on Windows 11 24H2

I have a small office customer running OES 15 & GroupWise 2014R2 that I support when something breaks, but otherwise they're quiet and happy running their old software... they haven't had active maintenance in forever.

On Friday though their one Windows 11 computer updated itself to 24H2.  After that the GroupWise client wouldn't launch, gives the error that GroupWise isn't installed correctly.  I tried uninstalling, re-installing, updated to the very last 2014R2 SP3 client, nothing worked.  I rolled the Windows back to 23H2 and re-installed GroupWise, all is well again but obviously this is a temporary fix.  I'm telling them they may have to give in and get a OWS:SBE subscription and let me upgrade everything to the current decade...

In the meantime, has anyone else run into this and come up with any fix to run GW 2014 R2 client on Win 11 24H2?  I realize it's an odd/rare combo, 10 year old GW client with a bleeding edge Windows version.

Thanks.

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    There are applications that won't run properly on Windows 11. I haven't tried the GroupWise 2014 R2 client.


    Did you try running the GroupWise client in compatibility mode?

    __________
    Kevin Boyle, SuperUser

    Calgary, Alberta, Canada

  • 0 in reply to   

    I didn't think to try manually setting a compatibility mode, as I can count the number of times compatibility mode has actually made a program work on the fingers of an old shop teacher's hand and still have a finger or two left over...

    but you're right, couldn't hurt to try. I have an 11 24H2 test system on my desk at my regular job, I can install 2014 R2 SP3 and try it after hours

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  • 0 in reply to   

    I didn't think to try manually setting a compatibility mode, as I can count the number of times compatibility mode has actually made a program work on the fingers of an old shop teacher's hand and still have a finger or two left over...

    but you're right, couldn't hurt to try. I have an 11 24H2 test system on my desk at my regular job, I can install 2014 R2 SP3 and try it after hours

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