问题是你正在使用Pointpoint Interop。除非你在安装了PowerPoint的虚拟机中运行它，否则它将不起作用。



此外，在非用户交互式会话中运行时不支持Office应用程序，如Windows Server，Web应用程序或作为登录用户以外的任何其他方式运行的预定作业。

The problem is that you're using Pointpoint Interop. Unless you have this running in a virtual machine with PowerPoint installed it's not going to work.

Also, Office applications are NOT supported when running in a non-user interactive session, like a Windows Server, web application or a scheduled job running as anything other than a logged in user.