LazyMAPI

MAPI Properties

MAPI Property: PR_ATTACH_FLAGS
Description: Contains a bitmask of flags for an attachment.
Property ID: $3714
Property type: PT_LONG
Area: Message attachment

Remarks:
This property is used for MHTML support.
One or more of the following flags can be set for the PR_ATTACH_FLAGS bitmask: ATT_INVISIBLE_IN_HTML - Indicates that this attachment is not available to HTML rendering applications and should be ignored in Multipurpose Internet Mail Extensions (MIME) processing. ATT_INVISIBLE_IN_RTF - Indicates that this attachment is not available to applications rendering in Rich Text Format (RTF) and should be ignored by MAPI.
If the PR_ATTACH_FLAGS property is zero or absent, the attachment is to be processed by all applications.