Supporting Named Properties
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. ArchiveDisclaimer

Supporting Named Properties

This content is outdated and is no longer being maintained.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.

Any object that implements the IMAPIProp : IUnknown interface can support named properties. Support for named properties is required for:

  • Address book providers that allow entries from other providers to be copied into their containers.

  • Message store providers that can be used to create arbitrary message types.

Named property support is optional for all other service providers. Service providers that do support named properties must implement name-to-identifier mapping in the IMAPIProp::GetNamesFromIDs and IMAPIProp::GetIDsFromNames methods. Clients call GetNamesFromIDs to retrieve the corresponding names for one or more property identifiers in the over 0x8000 range and GetIDsFromNames to either create or retrieve the identifiers for one or more names.

Service providers that do not support named properties must:

© 2016 Microsoft