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PidTagAnr Canonical Property

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Contains a string value for use in a property restriction on an address book container contents table.

Associated properties:




Data type:



Address book

These properties do not belong to any object; it is furnished by address book providers in SPropertyRestriction structures. This property contains an ambiguous name resolution (ANR) string that can be tested against an address book container's contents table to find corresponding message recipients.

Address book providers match the value of PR_ANR and associated properties against every entry in the contents table, using a provider-defined matching algorithm. The column or columns that are used in this match are chosen by the provider as part of the algorithm. The PR_DISPLAY_NAME (PidTagDisplayName) column is the most commonly used; the PR_ACCOUNT (PidTagAccount) column is also useful when it contains the user's e-mail name.

For more information on ambiguous name resolution, see Address Book Restrictions.

Protocol Specifications


Provides references to related Exchange Server protocol specifications.


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 associated properties.