Greetings

I am a newbie so please be gentle:-)

Am using OL2003, VSTO 2005SE with VS2005 (VB.NET)

I have managed to create an addin using VSTO a toolbar with dropdown on a
new mail message that adds a security classification to the subject line
before the mail is sent. What I am also trying to do is add a custom header
(X-Protective-Marking to the mail message before it is sent. I can't
easily see how to do this.

Any help or pointers so other examples would be greatly appreciated.

Cheers
Peter Lock
Palace Software

You can't use the Outlook object model to add an x-header, you would have to
use a lower level API such as CDO 1.21 (optional installation and not
supported in .NET code), Extended MAPI (C++ or Delphi only and not supported
in .NET code) or a COM wrapper around MAPI like Redemption
(www.dimastr.com/redemption).

A CDO sample to create an x-header is shown in a custom form at
http://www.ivasoft.biz/addheader3.html.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm


"Peter" wrote in message
...
Greetings

I am a newbie so please be gentle:-)

Am using OL2003, VSTO 2005SE with VS2005 (VB.NET)

I have managed to create an addin using VSTO a toolbar with dropdown on a
new mail message that adds a security classification to the subject line
before the mail is sent. What I am also trying to do is add a custom
header (X-Protective-Marking to the mail message before it is sent. I
can't easily see how to do this.

Any help or pointers so other examples would be greatly appreciated.

Cheers
Peter Lock
Palace Software

Hi Ken

Thank you for that. I thought I might have to dig out my old C++ books:-)

Cheers
Peter


"Ken Slovak - [MVP - Outlook]" wrote in message
...
You can't use the Outlook object model to add an x-header, you would have
to use a lower level API such as CDO 1.21 (optional installation and not
supported in .NET code), Extended MAPI (C++ or Delphi only and not
supported in .NET code) or a COM wrapper around MAPI like Redemption
(www.dimastr.com/redemption).

A CDO sample to create an x-header is shown in a custom form at
http://www.ivasoft.biz/addheader3.html.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm


"Peter" wrote in message
...
Greetings

I am a newbie so please be gentle:-)

Am using OL2003, VSTO 2005SE with VS2005 (VB.NET)

I have managed to create an addin using VSTO a toolbar with dropdown on a
new mail message that adds a security classification to the subject line
before the mail is sent. What I am also trying to do is add a custom
header (X-Protective-Marking to the mail message before it is sent. I
can't easily see how to do this.

Any help or pointers so other examples would be greatly appreciated.

Cheers
Peter Lock
Palace Software