469,625 Members | 1,137 Online
Bytes | Developer Community
New Post

Home Posts Topics Members FAQ

Post your question to a community of 469,625 developers. It's quick & easy.

CDO.dll or cdosys.dll

I am working on a program that gets mail messages from the default SMTP
server with iis 6.0 on windows server 2003. I am using the cdosys.dll in the
system32 directory. The reference Name is "Microsoft CDO for Windows 2000
Library".

On the machine there is a CDO.dll in the Program Files\Common
Files\System\MSMAPI\1033 directory.

The question is which one of these is the current dll. I also wonder if
there is better way to access mail messages in the SMTP server. Does the
dotnet framework have a object for this like system.net.mail that does this.

I am using the objects:
Dim objDropDir As New CDO.DropDirectory
Dim objMessages As CDO.IMessages
Dim objMailMessage As CDO.IMessage
Dim MailAttachments As CDO.IBodyParts
Dim MailAttachment As CDO.IBodyPart

to get messages in the drop directory (.eml files) open them and get any
attached file.

Thank you
--
Jerry
Aug 14 '08 #1
4 6898
Hi Jerry,

As for the CDO.dll , it is a Mail message component based on the MAPI
providers(work mostly as exchange client). While CDOSYS.dll is a standalone
library for SMTP messaging(not rely on the MAPI providers or exchange
server). Here is a knowledge base article mentioned the version information:

#Where to acquire the CDO Libraries (all versions)
http://support.microsoft.com/kb/171440

BTW, for the System.Net.Mail classes in .net framework, so far based on my
understanding, that namespace provide some classes for sending emails via
SMTP protocol. However, it doesn't support reading or parsing existing
email messages(file based).

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead
Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we

can improve the support we provide to you. Please feel free to let my
manager know what you think of

the level of service provided. You can send feedback directly to my manager
at: ms****@microsoft.com.

==================================================
Get notification to my posts through email? Please refer to

http://msdn.microsoft.com/en-us/subs...#notifications.

Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response

from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take

approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution.

The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump

analysis issues. Issues of this nature are best handled working with a
dedicated Microsoft Support

Engineer by contacting Microsoft Customer Support Services (CSS) at

http://support.microsoft.com/select/...tance&ln=en-us.
==================================================
This posting is provided "AS IS" with no warranties, and confers no
rights.--------------------
>From: =?Utf-8?B?SmVycnkgQw==?= <je*****@nospam.nospam>
Subject: CDO.dll or cdosys.dll
Date: Thu, 14 Aug 2008 09:22:01 -0700
>
I am working on a program that gets mail messages from the default SMTP
server with iis 6.0 on windows server 2003. I am using the cdosys.dll in
the
>system32 directory. The reference Name is "Microsoft CDO for Windows 2000
Library".

On the machine there is a CDO.dll in the Program Files\Common
Files\System\MSMAPI\1033 directory.

The question is which one of these is the current dll. I also wonder if
there is better way to access mail messages in the SMTP server. Does the
dotnet framework have a object for this like system.net.mail that does
this.
>
I am using the objects:
Dim objDropDir As New CDO.DropDirectory
Dim objMessages As CDO.IMessages
Dim objMailMessage As CDO.IMessage
Dim MailAttachments As CDO.IBodyParts
Dim MailAttachment As CDO.IBodyPart

to get messages in the drop directory (.eml files) open them and get any
attached file.

Thank you
--
Jerry
Aug 15 '08 #2
Hi Jerry,

How are you doing?
Have you got any further ideas or still have any question on this issue?

Sincerely,

Steven Cheng
Microsoft MSDN Online Support Lead
Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we can improve the support we provide to you. Please
feel free to let my manager know what you think of the level of service
provided. You can send feedback directly to my manager at:
ms****@microsoft.com.

==================================================
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/en-us/subs...#notifications.
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.

--------------------
>From: st*****@online.microsoft.com (Steven Cheng [MSFT])
Organization: Microsoft
Date: Fri, 15 Aug 2008 06:34:56 GMT
Subject: RE: CDO.dll or cdosys.dll
>Hi Jerry,

As for the CDO.dll , it is a Mail message component based on the MAPI
providers(work mostly as exchange client). While CDOSYS.dll is a
standalone
>library for SMTP messaging(not rely on the MAPI providers or exchange
server). Here is a knowledge base article mentioned the version
information:
>
#Where to acquire the CDO Libraries (all versions)
http://support.microsoft.com/kb/171440

BTW, for the System.Net.Mail classes in .net framework, so far based on my
understanding, that namespace provide some classes for sending emails via
SMTP protocol. However, it doesn't support reading or parsing existing
email messages(file based).

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead
Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we

can improve the support we provide to you. Please feel free to let my
manager know what you think of

the level of service provided. You can send feedback directly to my
manager
>at: ms****@microsoft.com.

================================================= =
Get notification to my posts through email? Please refer to

http://msdn.microsoft.com/en-us/subs...#notifications.

Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response

from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
u
Aug 19 '08 #3
Steven,

Thank you.
I will be using the CDOSYS.dll.

Even thought my question seems basic your answers and Knowledge saves me a
lot of time determining if I am using the correct technology for the given
task. You provide a valuable service.

Thank you
--
Jerry
"Steven Cheng [MSFT]" wrote:
Hi Jerry,

How are you doing?
Have you got any further ideas or still have any question on this issue?

Sincerely,

Steven Cheng
Microsoft MSDN Online Support Lead
Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we can improve the support we provide to you. Please
feel free to let my manager know what you think of the level of service
provided. You can send feedback directly to my manager at:
ms****@microsoft.com.

==================================================
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/en-us/subs...#notifications.
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.

--------------------
From: st*****@online.microsoft.com (Steven Cheng [MSFT])
Organization: Microsoft
Date: Fri, 15 Aug 2008 06:34:56 GMT
Subject: RE: CDO.dll or cdosys.dll
Hi Jerry,

As for the CDO.dll , it is a Mail message component based on the MAPI
providers(work mostly as exchange client). While CDOSYS.dll is a
standalone
library for SMTP messaging(not rely on the MAPI providers or exchange
server). Here is a knowledge base article mentioned the version
information:

#Where to acquire the CDO Libraries (all versions)
http://support.microsoft.com/kb/171440

BTW, for the System.Net.Mail classes in .net framework, so far based on my
understanding, that namespace provide some classes for sending emails via
SMTP protocol. However, it doesn't support reading or parsing existing
email messages(file based).

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead
Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we

can improve the support we provide to you. Please feel free to let my
manager know what you think of

the level of service provided. You can send feedback directly to my
manager
at: ms****@microsoft.com.

==================================================
Get notification to my posts through email? Please refer to

http://msdn.microsoft.com/en-us/subs...#notifications.

Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response

from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
u

Aug 21 '08 #4
You're welcome:)

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead
--------------------
>Subject: RE: CDO.dll or cdosys.dll
Date: Thu, 21 Aug 2008 06:58:00 -0700
>
Steven,

Thank you.
I will be using the CDOSYS.dll.

Even thought my question seems basic your answers and Knowledge saves me a
lot of time determining if I am using the correct technology for the given
task. You provide a valuable service.

Thank you
--
Jerry
"Steven Cheng [MSFT]" wrote:
>Hi Jerry,

How are you doing?
Have you got any further ideas or still have any question on this issue?

Sincerely,

Steven Cheng
Microsoft MSDN Online Support Lead
Delighting our customers is our #1 priority. We welcome your comments
and
>suggestions about how we can improve the support we provide to you.
Please
>feel free to let my manager know what you think of the level of service
provided. You can send feedback directly to my manager at:
ms****@microsoft.com.

================================================= =
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/en-us/subs...#notifications.
>================================================= =
This posting is provided "AS IS" with no warranties, and confers no
rights.
>>
--------------------
>From: st*****@online.microsoft.com (Steven Cheng [MSFT])
Organization: Microsoft
Date: Fri, 15 Aug 2008 06:34:56 GMT
Subject: RE: CDO.dll or cdosys.dll
>Hi Jerry,

As for the CDO.dll , it is a Mail message component based on the MAPI
providers(work mostly as exchange client). While CDOSYS.dll is a
standalone
>library for SMTP messaging(not rely on the MAPI providers or exchange
server). Here is a knowledge base article mentioned the version
information:
>
#Where to acquire the CDO Libraries (all versions)
http://support.microsoft.com/kb/171440

BTW, for the System.Net.Mail classes in .net framework, so far based on
my
>understanding, that namespace provide some classes for sending emails
via
>SMTP protocol. However, it doesn't support reading or parsing existing
email messages(file based).

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead
Delighting our customers is our #1 priority. We welcome your comments
and
>suggestions about how we

can improve the support we provide to you. Please feel free to let my
manager know what you think of

the level of service provided. You can send feedback directly to my
manager
>at: ms****@microsoft.com.

================================================= =
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/en-us/subs...#notifications.
>
Note: The MSDN Managed Newsgroup support offering is for non-urgent
issues
>where an initial response

from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each
follow
>u

Aug 22 '08 #5

This discussion thread is closed

Replies have been disabled for this discussion.

Similar topics

1 post views Thread by Paxton | last post: by
21 posts views Thread by tp | last post: by
14 posts views Thread by Neil Ginsberg | last post: by
8 posts views Thread by Akbur | last post: by
2 posts views Thread by mister-Ed | last post: by
8 posts views Thread by worldofrugs | last post: by
9 posts views Thread by paulmitchell507 | last post: by
reply views Thread by gheharukoh7 | last post: by
By using this site, you agree to our Privacy Policy and Terms of Use.