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 Windows Server 2003,
			 Microsoft Exchange 2000 Server, Microsoft Exchange Server 2003, or both Windows
			 and Exchange. 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. 
		  To work around this issue:
		  
- On the server where you want to install Exchange 2003, run
				Exchange 2003 Setup. 
 - When the Component Selection page of the
				Microsoft Exchange Installation Wizard appears on your screen, go to step
				3.
 - On the domain controller, use ADSI Edit to change the value
				of the OperatingSystemServicePack attribute of the domain
				controller from SERVICE PACK 3 to Service Pack
				3. To do so:
				
- Start ADSI Edit.
 - Expand Domain
					 [ServerName.Domain.com].
 - Expand
					 DC=Domain,DC=com, and then expand
					 OU=Domain Controllers.
 - Right-click the appropriate domain controller, and then
					 click Properties.
 - Click the Attributes tab.
 - In the Select which properties to view
					 box, click Both. 
 - In the Select a property to view box,
					 click OperatingSystemServicePack. 
 - In the Edit Attribute box, type
					 Service Pack 3, click Set, and then click
					 OK. 
 - Quit ADSI Edit. 
 
 - On the server where you are installing Exchange 2003,
				specify the action that you want to perform in the Action
				column of the Component Selection page of the Microsoft
				Exchange Installation Wizard.
 - Follow the instructions on the remaining pages of the
				wizard to install Exchange 2003 on the server.