LOAD THE QT PLATFORM PLUGIN WINDOWS FOR FREE
LOAD THE QT PLATFORM PLUGIN WINDOWS INSTALL
LOAD THE QT PLATFORM PLUGIN WINDOWS PC

It still crashes when not running from Qt, however. Make sure to deploy Qt with accessibility plugins.'ДЄfter adding the 'Accessible' folder from the plugins directory the program works fine in Qt. Problem creating accessible interface for: QPushButton(0x88fd18) 'QWindowsWindow::setGeometry: Unable to set geometry 75x23+480+190 on QWidgetWindow/'QPushButtonClassWindow'. 'The instruction at 0x5b175f0d referenced memory at 0x00000000. While it runs within Qt, it still shows a crash error in the application output: However now the program crashes when run. Using Microsoft Visual C++ Compiler 12.0 (x86) and Qt 5.3.0 (msvc2013) I was able to solve the error. I reinstalled Qt and corrected all the kit's compilers and Qt's. What perfectly worked with Qt4 now is not with Qt 5. I can see many discussion on this point but I cannot find a conclusive solution for me. I am using MSVC project file and InstallShield (as I said). Plugins/platforms/ and put qwindows.dll inside but did not help

LOAD THE QT PLATFORM PLUGIN WINDOWS PC

I tried to manually add in the application path of the target pc (not my pc) the directories 'This application failed to start because it could not find or load the Qt platform plugin 'windows' ' If I run my application on most of PC I get the infamous error: I understand I need to support the MSVC run time support (done)

LOAD THE QT PLATFORM PLUGIN WINDOWS FOR FREE

I am distributing the program with the InstallShield package which come for free with MSVC2012 In fact the program works perfectly on my PC. I want to design a program which works on any PC (either XP, W7 and W8): checking this is cumbersome since my design PC has installe Qt and MSVC redistributable (as part of MSVC2012). I am using MSVC 2012 and I am migrating from Qt4.8 to Qt.5.1 (or. license-wise) use the static Qt DLL's with the static MSVC CRT :-))) This is easy to miss, because on a developer's machine usually all the run-times will be installed globally - because Visual Studio has been installed on the machine.Д¬onclusion: Whenever possible (e.g. In the end you will have to ship both versions of the CRT DLL's for the application to work. Fortunately with VS2010 and VS2012 Mircrosoft has changed this again, so now the CRT DLL's are just 'normal' DLL's you can put into the same folder as the EXE file and that's it :-)ДЄnd another pitfall: If you use a different compiler for your EXE file than for the Qt DLL's - for example you compile your EXE with MSVC 11.0 but then use the pre-compiled Qt DLL's (with MSVC 10.0) from the official 'Qt libraries' package - you will end up with an EXE file that needs the CRT DLL's of MSVC 11.0, but also depends on the Qt DLL's that in turn need the CRT DLL's of MSVC 10.0.

They have to be 'registered' with WinSxS. That's because VS2008 (and VS2005 too) uses WinSxS to manage the CRT DLL's - putting the required CRT DLL's into the same folder as the EXE file does not work.

LOAD THE QT PLATFORM PLUGIN WINDOWS INSTALL

Just a note about this: With VS2008 (MSVC 9.0) we indeed have to install the MSVC Runtime package, by running the MSVC Redistributable setup program.

Load the qt platform plugin windows