Hi Malcolm and Peter,
Thank you both for replying. Yes, you would think that the components would work under Windows 7 as well, especially since, as Malcolm wrote, components are supposed too support all current Windows versions. I do understand that there may be certain components that may be specific to a given OS, however, I'm only using the most basic components to test for a large program that I'm preparing to undertake.
So I'm using FDConnection, FDQuery, DBGrid, a few TButtons, to control the connection, and TLabels. That's it. Works great on Windows 10, but Windows 7, not! I must admit that it is very disheartening that a program as simple as a form with the components described fails due to some obscure Windows DLL.
When I search on it, I see a bunch of junk as well. So... what is the solution, I haven't figured it out yet. I'll post when I find a confident solution.
Finally, as a side note this post, when I first built the program it failed to run on other WIn 10 machines. I ended up having to use InstallAware's Scan feature to actually gather a "Whole" bunch of other DLL's. These other DLL's were NOT listed in the package dependencies shown in the IDE's Information Dialog. And they were "required" for the program to run on a different Windows 10 machine that my build box too!
So somewhere there needs to be a more discussion on the requirements for deploying VCL applications other than the list in radstudio_deploy_XX.htm file, as most of the files InstallAware gathered are not referenced in Embarcadero's documentation? I can list the names of those DLL's if anyone is interested, but it is a long list.
Thank you.
Peter Below wrote:
Delphi Seattle, Berlin, and Tokyo include a number of UI components
that are specific for Windows 10. Have you perhaps used one of those
in your application?
Peter, you seem to imply that those components will not work in older
versions of Windows. But the Seattle notes say "These controls are made
specifically for Windows 10, but support all Windows versions".
Google gives several hits for this dll being missing. But I don't use
C++ so my eyes glazed over when looking for a solution.

--
-Paul
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