Hi,

I am using C# in VS 2005 and VSTO SE Beta.

My aim is to create a new MailItem that has some of the same properties of
another MailItem. Using MAPI you could do it using the IMAPIProp::CopyTo()
function and specifying which properties you wanted to copy from one MailItem
to another. Is there a way of doing this with the new Outlook object model?

Note that the new MailItem does not have all the properties of the old
MailItem. Is that an issue? I understand that some of the properties have a
read only access but still there must be a way of changing them like there is
in MAPI.

I tried using PropertyAccessor and copy each property one by one but failed.
Here is what I do:

string propertyName = "http://schemas.microsoft.com/mapi/proptag/0x0E070003"

MailItem newMailItem = this.Application.CreateItem(OlItemType.olMailItem) as
MailItem;

int value = oldMailItem.PropertyAccessor.GetProperty(propertyN ame);
newMailItem.PropertyAccessor.SetProperty(propertyN ame, value);

The last line throughs the exception. This specific property is computed
property and you cant even set it using OutlookSpy but I have some code using
(as mentioned above) IMAPIProp::CopyTo() function and does copy it to the new
message.

Any help would much appreciated.