Is Interop.Outlook multithreaded?

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+1 Q:

Is Interop.Outlook multithreaded?

I need to use Outlook Interop objects for generating .MSG files from a web interface. That's why they will be accessed simultaneously by different threads. Is it multithreaded?

And another question: Does Outlook need to be initialized (e.g. account set) before using Outlook.Application on a server?

+3 A:

As far as I know none of the Office API's were designed to work on the server side, only at the client side.

Otávio Décio 2010-02-01 13:37:19

what is better way of creating '.msg' file? Using IStorage interface?

Yurec 2010-02-01 13:41:57

Redemption might be able to help you out here, or have you thought about EWS exchange dav?

76mel 2010-02-02 13:48:22

+3 A:

The simple answer to your question is No.

Don't go down the automation route, Office applications are not designed to be used within a non-user interactive environment or to be ran on a server. Microsoft have posted quite a long knowledge base article on this detailing problems from security, scalability etc.

Previously this hasn't been a problem and people have gotten away with it, just ignoring the advice. However you'll find that the newer operating systems (vista/server 2k8/win7) and new versions of Office simply don't work anymore. I highly recommend not going down that route.

Ian 2010-02-01 14:05:08

+1: A component at my office went down this route a decade or more ago. The poor people in charge of maintaining it still regularly run into problems that can be either directly or indirectly attributable to running office via non-interactive automation. And that's just doing it via Task Scheduler.

Greg D 2010-02-01 23:10:10

ansaurus

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Is Interop.Outlook multithreaded?

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