Hello i try to get access to the property
http://schemas.microsoft.com/mapi/proptag/0x5D01001F or http://schemas.microsoft.com/mapi/proptag/0x4023001F with C#
What i did not understand is why the OutlookSpy tools are able to access thoses property and with my c# vsto plugin i am not able to access them.
What did i do wrong ?
Here is my code. The property are always empty
PropertyAccessor prop = Mail.PropertyAccessor;
string value1 = prop.GetProperty("http://schemas.microsoft.com/mapi/proptag/0x5D01001F");
string value2 = prop.GetProperty("http://schemas.microsoft.com/mapi/proptag/0x4023001F");