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Installing Qt-built apps on Windows 7

  • Don't know if this is the right forum - if "Installation" covers this. I have Qt version 4.7.0
    on my Windows XP machine. I've configured and built it successfully, and build the examples.

    Using Microsoft Visual Studio 2008, I can compile and run the Qt programs. When I use
    Visual Studio to create a "setup and deployment" project (an installer), it works, and installs
    the app on my machine. When I give the client using Windows 7 an installer, can't successfully
    install and run the app.

    Activation context generation failed for "C:\Program\MyQtApp.exe". Dependent Assembly Microsoft.VC90.DebugCRT,processorArchitecture="x86",publicKeyToken="xxxxxxxxxxxxxx",type="win32",version="9.0.21022.8" could not be found. Please use sxstrace.exe for detailed diagnosis

  • You need to redistribute visual 2008 runtime in addition to your application. And when distributing, you want to compile in release, so that end-user don't have to deal with debug / release runtimes.

    Simplest way : add the files found in
    C:\Program Files\Microsoft Visual Studio 9.0\VC\redist\x86\Microsoft.VC90.CRT
    to your installer and deploys them in the same folder as your app

  • If you deliver, you must use release, as the debug dll of microsoft (msvcrt*) are not for distribution in debug version.

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