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client operation failed on determining TNEF attachment type

Hi,

We are using Exchange Server 5.5, and have applications written in VB6 and
C# that read and process emails.

We are experiencing intermittent errors similar to

C# Application

System.Runtime. InteropServices .COMException (0x80004005): The client
operation failed. [Microsoft Exchange Server Information Store -
[E_FAIL(80004005 )]] at System.RuntimeT ype.ForwardCall ToInvokeMember( String
memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes,
MessageData& msgData) at MAPI.Attachment .get_Type()

VB Application

-2147467259 = The client operation failed. [Microsoft Exchange
Server Information Store

The error happens on the determination of the attachment type, as shown in
these code snippets:

C# Application

if ((CdoAttachment Type)att.Type ==
MAPI.CdoAttachm entType.CdoEmbe ddedMessage)

VB Application

If CInt(objMessage .Attachments(j) .Type) <> CdoEmbeddedMess age Then

As it is, the fact that there are attachments is recognized, but fails in
determining the attachment types.

Please note that we can open the emails and attachments from Outlook without
any problems.

We noticed that this behavior happens for emails with source containing
something similar to:

X-MS-TNEF-Correlator: 00000000FCD67D6 733BD374CB183ED 8ADF9C0E6BE44E3 100
This is a multi-part message in MIME format.
--Boundary_(ID_UM mVtfCC+Dy+KJBXV N6RQg)
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 7BIT

--Boundary_(ID_UM mVtfCC+Dy+KJBXV N6RQg)
Content-type: application/ms-tnef; name=winmail.da t
Content-transfer-encoding: base64
Content-disposition: attachment; filename=winmai l.dat

Any help you can provide to help us understand the problem and work towards
a solutions is greatly appreciated.

Thanks and regards,
Romel

Nov 21 '05 #1
2 4549
Romel,

You sand this message to the newsgroup from VBNet and not to C#.

VB6 and VBNet are almost complete different languages and of course
especially the errorcodes. (C# and VBNet are lookalikes and give the same
errorcodes, so maybe you are lucky and somebody recognise that)

However that change is in my opinion small, so why not try it in
microsoft.publi c.dotnet.langua ges.csharp
and maybe for VB6 (the most active VB6 newsgroup VB6 now)
microsoft.publi c.vb.generaldis cussions

I hope you find your solution

Cor

"CTDev Team" <CT********@new sgroup.nospam>
Hi,

We are using Exchange Server 5.5, and have applications written in VB6 and
C# that read and process emails.

We are experiencing intermittent errors similar to

C# Application

System.Runtime. InteropServices .COMException (0x80004005): The client operation failed. [Microsoft Exchange Server Information Store -
[E_FAIL(80004005 )]] at System.RuntimeT ype.ForwardCall ToInvokeMember( String
memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes,
MessageData& msgData) at MAPI.Attachment .get_Type()

VB Application

-2147467259 = The client operation failed. [Microsoft Exchange
Server Information Store

The error happens on the determination of the attachment type, as shown in
these code snippets:

C# Application

if ((CdoAttachment Type)att.Type ==
MAPI.CdoAttachm entType.CdoEmbe ddedMessage)

VB Application

If CInt(objMessage .Attachments(j) .Type) <> CdoEmbeddedMess age Then

As it is, the fact that there are attachments is recognized, but fails in
determining the attachment types.

Please note that we can open the emails and attachments from Outlook without any problems.

We noticed that this behavior happens for emails with source containing
something similar to:

X-MS-TNEF-Correlator: 00000000FCD67D6 733BD374CB183ED 8ADF9C0E6BE44E3 100
This is a multi-part message in MIME format.
--Boundary_(ID_UM mVtfCC+Dy+KJBXV N6RQg)
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 7BIT

--Boundary_(ID_UM mVtfCC+Dy+KJBXV N6RQg)
Content-type: application/ms-tnef; name=winmail.da t
Content-transfer-encoding: base64
Content-disposition: attachment; filename=winmai l.dat

Any help you can provide to help us understand the problem and work towards a solutions is greatly appreciated.

Thanks and regards,
Romel


Nov 21 '05 #2
Hi Cor,

Thanks a lot for your reply.

The same question was originally posted to the just to the csharp group
yesterday, and we decided to post it to the other related groups as well.

As you have suggested though, we are including

microsoft.publi c.vb.generaldis cussions

in this post.

Again, many thanks.

regards,
Romel

"Cor Ligthert" <no**********@p lanet.nl> wrote in message
news:#S******** ******@TK2MSFTN GP09.phx.gbl...
Romel,

You sand this message to the newsgroup from VBNet and not to C#.

VB6 and VBNet are almost complete different languages and of course
especially the errorcodes. (C# and VBNet are lookalikes and give the same
errorcodes, so maybe you are lucky and somebody recognise that)

However that change is in my opinion small, so why not try it in
microsoft.publi c.dotnet.langua ges.csharp
and maybe for VB6 (the most active VB6 newsgroup VB6 now)
microsoft.publi c.vb.generaldis cussions

I hope you find your solution

Cor

"CTDev Team" <CT********@new sgroup.nospam>
Hi,

We are using Exchange Server 5.5, and have applications written in VB6 and C# that read and process emails.

We are experiencing intermittent errors similar to

C# Application

System.Runtime. InteropServices .COMException (0x80004005): The

client
operation failed. [Microsoft Exchange Server Information Store -
[E_FAIL(80004005 )]] at System.RuntimeT ype.ForwardCall ToInvokeMember( String memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes,
MessageData& msgData) at MAPI.Attachment .get_Type()

VB Application

-2147467259 = The client operation failed. [Microsoft Exchange
Server Information Store

The error happens on the determination of the attachment type, as shown in these code snippets:

C# Application

if ((CdoAttachment Type)att.Type ==
MAPI.CdoAttachm entType.CdoEmbe ddedMessage)

VB Application

If CInt(objMessage .Attachments(j) .Type) <> CdoEmbeddedMess age Then
As it is, the fact that there are attachments is recognized, but fails in determining the attachment types.

Please note that we can open the emails and attachments from Outlook

without
any problems.

We noticed that this behavior happens for emails with source containing
something similar to:

X-MS-TNEF-Correlator: 00000000FCD67D6 733BD374CB183ED 8ADF9C0E6BE44E3 100 This is a multi-part message in MIME format.
--Boundary_(ID_UM mVtfCC+Dy+KJBXV N6RQg)
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 7BIT

--Boundary_(ID_UM mVtfCC+Dy+KJBXV N6RQg)
Content-type: application/ms-tnef; name=winmail.da t
Content-transfer-encoding: base64
Content-disposition: attachment; filename=winmai l.dat

Any help you can provide to help us understand the problem and work

towards
a solutions is greatly appreciated.

Thanks and regards,
Romel



Nov 21 '05 #3

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