Why not running Microsoft.Office.Interop.Outlook in asp.net?

I wrote some code about sending mail, Task, Appoinment etc. For example you can add someone to开发者_JAVA技巧 your outlook contact list over asp.net page. Every thing is ok on my local machine. But if I publish my application to a server I can not add noone on my outlook. Please help me it is important.

This is generally not a good idea, as Microsoft themselves state:

Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.

Read the article to find out which obstacles await you.

I think you need to create an outlook/mapi profile on the server for the user that is sending the email. nOte that since you're runnning on ASP.NET then the user sending the email will be the identity of the Application pool that the virtual directory of the web application is running in.

This is an old article about creating a profile with outlook installed.