If pinentry-qt is started in Windows XP or Vista, it does not work with an error message like
Der Prozedureinsprungpunkt "CancelIoEx" wurde in der DLL "KERNEL32.dll" nicht gefunden.
"The procedure entry point CancelIOEx could not be located in the dynamic link library KERNEL32.dll"
A start of kleopatra fails with
"This application failed to start because it could not find or load the Qt platform plugin "windows"..."
It is very likely that this is caused by a version of Qt5 that does not support XP and Vista anymore.
Possible solutions would be:
- fix our Qt version to support it again
- use an older Qt version. E.g. QT LTS version 5.6 still supports XP and Vista: http://doc.qt.io/qt-5.6/supported-platforms.html which is supported until March 16th 2019 (see https://doc.qt.io/qt-5/supported-platforms-and-configurations.html).
- we live without XP and VISTA (vista's extended support ended on 11th of April 2017).