您必须首先安装 Outlook 2007 主互操作程序集 (PIA) 位于全局程序集缓存 (GAC) 中，然后才能将来自 PIA 的信息合并到 Outlook 托管加载项中.为此，您可以选择 Office 的典型安装，然后添加 Outlook 的 .NET 可编程性支持.

You must first install the Outlook 2007 Primary Interop Assembly (PIA) in the Global Assembly Cache (GAC) before you can incorporate information from the PIA in an Outlook managed add-in. You can do so by choosing the Typical installation of Office and then adding .NET Programmability Support for Outlook.

在安装 Outlook 后为 Outlook 添加 .NET 可编程性支持在控制面板中，单击添加或删除程序.

To add .NET Programmability Support for Outlook after Outlook is installed In Control Panel, click Add or Remove Programs.

选择您安装的 Office，然后单击更改".

Select your installation of Office and click Change.

选择添加或删除功能.

点击继续.

在安装选项"选项卡中，单击+"以展开要为其安装 PIA 的应用程序.

In the Installation Options tab, click the '+' to expand the application for which you want to install the PIA.

单击 .NET Programmability Support 旁边的下拉箭头，然后选择从我的电脑运行.

Click the drop-down arrow adjacent to .NET Programmability Support and select Run from My Computer.