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This is not a really simple issue, yet MSDN covers it. See <a href="http://support.microsoft.com/kb/197820" rel="ugc nofollow">http://support.microsoft.com/kb/197820</a>&nbsp;(&quot;How To MAPI Enable a Windows NT Service&quot;)
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This is not a really simple issue, yet MSDN covers it. See http://support.microsoft.com/kb/197820 [http://support.microsoft.com/kb/197820] ("How To MAPI Enable a Windows NT Service")

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Thanks, jkr. &nbsp;Make it even more complicated. &nbsp;We developed it in C# code. &nbsp;Here is a msdn blog about it. &nbsp;What is it really mean? &nbsp;Any further enlightenments?<br />
<br />
<a href="http://blogs.msdn.com/mstehle/archive/2007/10/03/fyi-why-are-mapi-and-cdo-1-21-not-supported-in-managed-net-code.aspx" rel="ugc">http://blogs.msdn.com/mstehle/archive/2007/10/03/fyi-why-are-mapi-and-cdo-1-21-not-supported-in-managed-net-code.aspx</a>.
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Thanks, jkr.  Make it even more complicated.  We developed it in C# code.  Here is a msdn blog about it.  What is it really mean?  Any further enlightenments?

http://blogs.msdn.com/mstehle/archive/2007/10/03/fyi-why-are-mapi-and-cdo-1-21-not-supported-in-managed-net-code.aspx [http://blogs.msdn.com/mstehle/archive/2007/10/03/fyi-why-are-mapi-and-cdo-1-21-not-supported-in-managed-net-code.aspx].

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Did anyone access Exchange inbox using MAPI in a Windows service? &nbsp;We have a problem to access the mailbox. &nbsp;The error seems &quot;server is not available.&quot; &nbsp;What we did were<br />
1) log in to the windows xp box using generic AD account, which is the owner of an emailbox.<br />
2) create mail profile. &nbsp;To verify the profile, the inbox can be accessed using Outlook interface.<br />
3) exit Outlook and Outlook process.<br />
4) run the newly-developed Windows service, which calls the profile and uses its password.<br />
5) we got exception.<br />
<br />
Is it something done by anyone? &nbsp;Any advices for troubleshooting?
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Did anyone access Exchange inbox using MAPI in a Windows service?  We have a problem to access the mailbox.  The error seems "server is not available."  What we did were
1) log in to the windows xp box using generic AD account, which is the owner of an emailbox.
2) create mail profile.  To verify the profile, the inbox can be accessed using Outlook interface.
3) exit Outlook and Outlook process.
4) run the newly-developed Windows service, which calls the profile and uses its password.
5) we got exception.

Is it something done by anyone?  Any advices for troubleshooting?

Develop a windows service to process exchange inbox via MAPI

Most development for the Microsoft platform is done utilizing the technologies supported by the.NET framework. Other development is done using Visual Basic for Applications (VBA) for programs like Access, Excel, Word and Outlook, with PowerShell for scripting, or with SQL for large databases.

Microsoft Development

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.