The directory service of Microsoft Exchange Server version 5.5 supports LDAP version 3, which means you can use ADSI with its LDAP provider to manipulate any object in the Microsoft Exchange Server 5.5 directory. This capability, when used with Collaboration Data Objects (CDO), lets administrators and developers efficiently write collaborative applications or administration tools.
This section provides information on writing directory-enabled applications that use ADSI to access the Microsoft Exchange Server 5.5 directory service and directory data.