qtifw_reg

function Component()
{

    // constructor
    if (installer.isInstaller())
        installer.setValue("AllUsers", true);

}

Component.prototype.isDefault = function()
{
    // select the component by default
    return true;
}

Component.prototype.createOperations = function()
{
    try {

        var reg = installer.environmentVariable("SystemRoot") + "\\System32\\reg.exe";
        var cmd = installer.environmentVariable("SystemRoot") + "\\System32\\cmd.exe";

        var jpeg1 = "HKCR\\jpegfile\\shell\\ImgScaleMenu /v MUIVerb /t REG_SZ /d \"ImgScale\"";
        var jpeg2 = "HKCR\\jpegfile\\shell\\ImgScaleMenu /v SubCommands /t REG_SZ /d \"imgscale.scale.50p;|;imgscale.scale.250;imgscale.scale.100;imgscale.scale.50\"";
        var jpeg_del = "HKCR\\jpegfile\\shell\\ImgScaleMenu /f"

        var png1 = "HKCR\pngfile\shell\ImgScaleMenu /v MUIVerb /t REG_SZ /d \"ImgScale\"";
        var png2 = "HKCR\\pngfile\\shell\\ImgScaleMenu /v SubCommands /t REG_SZ /d \"imgscale.scale.50p;|;imgscale.scale.250;imgscale.scale.100;imgscale.scale.50\"";
        var png_del = "HKCR\\pngfile\\shell\\ImgScaleMenu /f"

        component.addOperation("Execute", cmd, "/C", jpeg1, "UNDOEXECUTE", "cmd", "/C", jpeg_del);
        component.addOperation("Execute", cmd, "/C", jpeg2);

        component.addOperation("Execute", cmd, "/C", png1, "UNDOEXECUTE", "cmd", "/C", png_del);
        component.addOperation("Execute", cmd, "/C", png2);

    } catch (e) {
        print(e);
    }

}