Find out whether MailItem Attachment is hidden or not

Bellow is a peace of code, which helps you find out whether Attachment is part of the body of an e-mail message (e.g. signature) or whether it is a regular attachment.
bool hidden;

hidden = attachment.PropertyAccessor.GetProperty("");
catch (System.Runtime.InteropServices.COMException)
hidden = false;
This code works only with Office 2007 Interop Assemblies and later. For Outlook 2003 I suggest you use Redemption.