Some of sharper readers of our documentation talking about schema changes that Exchange makes (see Exchange Server Active Directory Schema Changes Reference, November 2011) have noticed that in Exchange 2010 SP2, we have added several things that sound very related to what’s traditionally known as “custom attributes” in Exchange. Specifically:
For object class ms-Exch-Custom-Attributes we added:
- ms-Exch-Extension-Attribute-16 to 45
- ms-exch-extension-custom-attribute-1 to 5
Read more at source: http://blogs.technet.com/b/exchange/archive/2012/01/17/custom-aka-extension-attributes-in-exchange-2010-sp2-and-their-use.aspx
Cheers,
Anderson Patricio
http://blogs.msexchange.org/patricio
Twitter: @apatricio