Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
PidTagAttachFlags Canonical Property
Collapse the table of content
Expand the table of content

PidTagAttachFlags Canonical Property

This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This page may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.

Contains a bitmask of flags for an attachment.

Associated properties:




Data type:



Message attachment

This property is used for MHTML support.

One or more of the following flags can be set for the PR_ATTACH_FLAGS bitmask:


Indicates that this attachment is not available to HTML rendering applications and should be ignored in Multipurpose Internet Mail Extensions (MIME) processing.


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.

Protocol Specifications


Handles message and attachment objects.

Header Files


Provides data type definitions.


Contains definitions of properties listed as alternate names.

© 2015 Microsoft