Outlook插件开发

Question

I'm going to develop an add in for outlook. There is outlook desktop app and outlook web app. I found these two links for development ,

• Outlook web app
• Outlook desktop app

Do I need to develop separate add in for each. Or is there any way to develop a single add in and deploy in both?

Advice on how to deploy these two would be appreciated.

Answer 1

The first one (now called Office addin) works both on the Web (OWA) and in the desktop version of Outlook. But it is very limited - in the current version it is really a fancy preview pane working in the context of the currently selected/viewed message/appointment/contact/task.

The second one only works on the desktop, but the API is very rich.

It all comes down to what exactly your addin is supposed to do.

Answer 2

Do I need to develop separate add in for each

Yes, you need to develop a separate solution if you want to get a COM add-in and Mail App.

Or is there any way to develop a single add in and deploy in both?

No, they are based on entirely separate technologies and can't be deployed using the single installer.

See Selecting an API or Technology for Developing Outlook Solutions for more information.