Outlook VSTO 加载项 - 加载错误 80080005

Outlook VSTO Add-in - Load Error 80080005

我有一个 Outlook 加载项,它工作正常。但是,在加载 Outlook 时,我的加载项关闭并且出现错误

Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following error: 80080005 Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE)).

有我的插件加载代码

    Explorer thisExplorer;
    public static Outlook.Application application;
    Logger _logger = LogManager.GetCurrentClassLogger();

    private void ThisAddIn_Startup(object sender, System.EventArgs e)
    {
        if (AppConfig.LoadConfigurations())
        {
            string nlogConfigFile = AppConfig.GetConfig<string>("NLogConfig");

            LogManager.Configuration = new NLog.Config.XmlLoggingConfiguration(nlogConfigFile, true);

            _logger.Info("***************************NEW SESSION*******************************");

            //
            application = new Outlook.Application();
            /*
            System.Diagnostics.Process[] processes = System.Diagnostics.Process.GetProcessesByName("OUTLOOK");

            int collCount = processes.Length;
            if (collCount != 0)
            {
                // Outlook already running, hook into the Outlook instance
                application = Marshal.GetActiveObject("Outlook.Application") as Outlook.Application;
            }
            else
            {
                application = new Outlook.Application();
            }
            */
            thisExplorer = Application.ActiveExplorer();
            thisExplorer.SelectionChange += new ExplorerEvents_10_SelectionChangeEventHandler(ApplicationExplorer_SelectionChanged);
        }
        else
        {
            MessageBox.Show("Failed to load configurations");
        }
    }

正如我在代码中所写,我根据

注释掉了 Outlook 进程计数

取消注释会导致另一个错误

Operation unavailable (Exception from HRESULT: 0x800401E3 (MK_E_UNAVAILABLE))

加载 Outlook 后,我通过菜单启用加载项,效果非常好。

那么,我该如何解决加载问题?

谢谢大家

不要创建 Outlook.Application 对象的新实例(无论如何它都会被安全补丁削弱) - 你免费获得该对象:使用 Globals.ThisAddIn.Application.