Hello, I am in the process of attempting to configure Exchange by following the whitepaper entitled "Configuring Virtual Organizations and Address List Segregation in Exchange 2007" in a Windows 2008 AD environment. All servers are 2008 and the domain and forest functional levels are 2003 The issue I am running into is setting the AD DS to "List Object" mode by modifying the dsHeuristics attribute on the Directory Service object (cn=Directory Service,cn=Windows NT,cn=Services,cn=Configuration,dc=ForestRootDomain). There is no structure like this using ASDI Edit on the domain controllers as this whitepaper seems to be for 2003. Is there a way to accomplish this on 2008 AD DS? Thanks for your input in advance, Seth

The adsiedit.msc tool in 2008 looks a bit different, but thats only because it connects to the domain partition by default. There are 4 partitions that make up Active Directory. You need to get ADSIedit to connect to Configuration. Once you do, youll find this attribute. 1. Start, run, adsiedit.msc 2. Right-click ADSI Edit 3. Connect to 4. Select configuration from middle drop down 5. Click ok 6. (configuration changes require Enterprise Admin rights) 7. Expand: a. CN=Configuration b. CN=Services c. CN=Windows NT d. CN=Directory Service 8. Right-click on CN=Directory Service 9. Properties 10. Find dSHeuristics and modify as instructed.

Mr. Crowley, Thank you very much. I appreciate your response as it has helped greatly. Seth