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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

PidTagServiceUid 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This content is outdated and is no longer being maintained.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 MAPIUID structure for a message service.

Associated properties:




Data type:



MAPI profile

This property is computed by MAPI on profile section objects. MAPI uses it to group all the providers that belong to the same message service. This property is supplied as a parameter to most of the IMsgServiceAdmin methods. It must not appear in Mapisvc.inf.

Header Files


Provides data type definitions.


Contains definitions of properties listed as alternate names.

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