Re: Fundamental Questions about Exchange Programming
- From: "Henning Krause [MVP - Exchange]" <newsgroup.no@xxxxxxxxxxxxxxxxx>
- Date: Sun, 3 Jul 2005 00:47:45 +0200
Hello,
> 1) Is there a potential conlict between the ports used for LDAP by
> Exchange Server 2003 and Active Directory if BOTH are installed on the
> same machine?
Exchange 5.5 was the last version that had its own directory service. Since
Exchange 2000, the Active Directory is used. So, there is no conflict...
> 2) How does one go about resolving this (see #1) if this is the case?
Does not apply...
> 3) Does Exchange Server 2003 maintain its own store, or does it store
> user data (contacts, personal info, etc.) in Active Directory?
Active Directory.
> Also, there appears to be a somewhat confusing array of programming
> technologies for use against Exchange Server: MAPI, ADSI,
> System.DirectoryServices, LDAP, etc. and I'm trying to see how they all
> interconnect. System.DirectoryServices (in .Net) stands upon ADSI, but
> its documentation points mostly to it communicating with Active
> Directory. However, ADSI, apparently, can be used to talk to Exchange
> as well (as it is meant to be a generic interface to "directory
> services" in general) - so does the same go for
> System.DirectoryServices, can I program against Exchange with it? The
> communication to Exchange through these technologies appears to be
> through LDAP (at least one mode of communication) in that Exchange
> stores things in a directory service with an LDAP provider, but given
> that the Exchange Server I'm talking to (2003) exists on an Active
> Directory server, how do I know my LDAP queries are hitting the
> Exchange Server and not the Active Directory server?
You must distinguish between querying information about users and
information about public folders and private mailboxes. The first one is
queried with System.DirectoryServices. Extended MAPI could also work, but
I'm by no means an expert on ExMapi.
To query public folders and private mailboxes, you have several
possibilities.
For an overview about the support in .NET languages see this link:
http://support.microsoft.com/default.aspx?scid=kb;en-us;813349
In General: If your programs are running directly on the server, you can use
ExOleDB. If you are remote, you can use WebDAV. Extended MAPI is always an
option, but as I don't really know it, I can't recommend it. But according
to the link above, it is not supported in a .NET managed environment.
Hope this helps,
Henning Krause [MVP - Exchange]
==========================
Visit my website: http://www.infinitec.de
Try my free Exchange Explorer: Mistaya
(http://www.infinitec.de/software/mistaya.aspx)
<kwendex@xxxxxxxxx> wrote in message
news:1120317372.783095.316430@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> 1) Is there a potential conlict between the ports used for LDAP by
> Exchange Server 2003 and Active Directory if BOTH are installed on the
> same machine?
> 2) How does one go about resolving this (see #1) if this is the case?
> 3) Does Exchange Server 2003 maintain its own store, or does it store
> user data (contacts, personal info, etc.) in Active Directory?
>
> Also, there appears to be a somewhat confusing array of programming
> technologies for use against Exchange Server: MAPI, ADSI,
> System.DirectoryServices, LDAP, etc. and I'm trying to see how they all
> interconnect. System.DirectoryServices (in .Net) stands upon ADSI, but
> its documentation points mostly to it communicating with Active
> Directory. However, ADSI, apparently, can be used to talk to Exchange
> as well (as it is meant to be a generic interface to "directory
> services" in general) - so does the same go for
> System.DirectoryServices, can I program against Exchange with it? The
> communication to Exchange through these technologies appears to be
> through LDAP (at least one mode of communication) in that Exchange
> stores things in a directory service with an LDAP provider, but given
> that the Exchange Server I'm talking to (2003) exists on an Active
> Directory server, how do I know my LDAP queries are hitting the
> Exchange Server and not the Active Directory server?
>
> As you can tell, I have some fundamental questions here and I hope
> someone can clear my head on these topics. Thanks in advance,
>
> Ben
>
.
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- Fundamental Questions about Exchange Programming
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