OlAttachmentType Enumeration

Specifies the attachment type.

Name	Value	Description
olByReference	4	This value is no longer supported since Microsoft Outlook 2007. Use olByValue to attach a copy of a file in the file system.
olByValue	1	The attachment is a copy of the original file and can be accessed even if the original file is removed.
olEmbeddeditem	5	The attachment is an Outlook message format file (.msg) and is a copy of the original message.
olOLE	6	The attachment is an OLE document.

Remarks

Used as an optional parameter to the Attachments.Add Method (Outlook) to specify the attachment type.