Error Code 5010

This behavior can occur because the Setup program is attempting to locate the Microsoft Exchange System Objects container, but cannot locate it. This behavior can occur because the objectclass attribute that the Setup program is attempting to locate is msExchSystemObjectsContainer. The Setup program then attempts to create an Exchange System Objects container by using the proper class type. However, the object already exists, and a new one cannot be created

To resolve this behavior, rename the organizational unit to something other than "Microsoft Exchange System Objects". To view the objectclass attribute, either use ADSI Edit or LDP. Note that if this organizational unit has the objectclass of msExchSystemObjectsContainer, this organizational unit cannot be renamed.

WARNING: If you use the ADSI Edit snap-in, the LDP utility, or any other LDAP version 3 client, and you incorrectly modify the attributes of Active Directory objects, you can cause serious problems. These problems may require you to reinstall Microsoft Windows 2000 Server, Microsoft Exchange 2000 Server, or both. Microsoft cannot guarantee that problems that occur if you incorrectly modify Active Directory object attributes can be solved. Modify these attributes at your own risk.