Replicate the Following System Public Folders:

	o Offline Address Book (Ex:/o=org/ou=site)
	o OAB Version 2
	o Schedule + Free Busy Folder

Remove Directory Replication Connectors:

	o Open Exchange 5.5 Administrator program
		o Expand local site name, then Configuration
		o Select Directory Replication Connectors
			o Do not delete the ADNAutoDRC connector

Remove from System Manager / Exchange Administrator:

	o Stop all Exchange services
	o Open Exchange Administrator, connect to your 2003 Exchange Server
		o Select the Exchange 5.5 Server and press delete
	o Open the ADC, right click Config CA_SRS_ServerNAME
		o Click Replicate Now
	o Allow time for the changes to replicate to Config_CAs in AD
	o Navigate to the Tools container, click Site Replication Services
		o Delete each SRS (deletes the corresponding Config_CAs)

Optional: Remove Exchange 5.5 from AD using ADSI Edit:

	o Open ADSI Edit
	o Expand each of the following items:
		o Configuration Container
		o CN=Configuration,DC=domain,dc=com
		o CN=Services
		o CN=Microsoft Exchange
		o CN=OrganizationName
		o CN=Administrative Groups
		o CN=AdministrativeGroupName_or_Exchange5.5SiteName
		o CN=Servers
	o Right click the Exchange 5.5 Server object, click Delete

	o Expand each of the following items:
		o Configuration Container
		o CN=Configuration,DC=domain,dc=com
		o CN=Services
		o CN=Microsoft Exchange
		o CN=OrganizationName
		o CN=Administrative Groups
		o CN=AdministrativeGroupName_or_Exchange5.5SiteName
		o CN=Routing Groups
		o CN=First Routing Groups
		o CN=Connections
	o Remove any Exchange 5.5 Server connectors

	o Make sure OWA is working correctly. You may receive an error stating
	  the page cannot be found HTTP 404 Error ... Unauthorized
	  To resolve the problem, see MSKB XWEB: 293386

Switch to Exchange 2000/2003 Native Mode:

	o Open System Manager
		o Right click organization, click properties, general tab
			o Click 'Change Mode'
			o Delete any Connectors that exist