The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

PidTagLastModificationTime 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This content is outdated and is no longer being maintained.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 the date and time when the object or subobject was last modified.

Associated properties:




Data type:



Message time

This property is initially set to the same value as the PR_CREATION_TIME (PidTagCreationTime) property. Attachment subobjects can update it as necessary by copying the last modification time maintained by the native file system. A client application can set this property until the first call to the IMAPIProp::SaveChanges method. From then on the provider should update PR_LAST_MODIFICATION_TIME during every IMAPIProp::SaveChanges call.

Protocol Specifications


Handles message and attachment objects.


Handles synchronizing messaging object data between a server and a client.


Specifies the properties and operations for lists of users, contacts, groups, and resources.

Header Files


Provides data type definitions.


Contains definitions of properties listed as alternate names.