See Also
The following table identifies the Active Directory domain controller operating systems that are supported for each version of Office Communications Server.
Supported Active Directory Domain Controller Operating Systems
| Operating system | Office Communications Server 2007 R2 | Office Communications Server 2007 | Live Communications Server 2005 with SP1 |
|---|---|---|---|
|
Windows Server 2000 with at least SP 4 |
No |
Yes |
Yes |
|
Windows Server 2003 with at least SP1 |
Yes |
Yes |
Yes |
|
Windows Server 2003 R2 |
Yes |
Yes |
Yes |
|
Windows Server 2008 |
Yes |
Yes |
No |
|
Windows Server 2008 R2 |
No |
No |
No |
The following table identifies the Active Directory forest and domain functional levels that are supported for each version of Office Communications Server.
 Note: |
|---|
| To change your domain or forest functional level, see “Raising
domain and forest functional levels” at
|
Supported Forest and Domain Functional Levels
| Forest and domain functional level | Office Communications Server 2007 R2 | Office Communications Server 2007 | Live Communications Server 2005 with SP1 |
|---|---|---|---|
|
Windows Server 2000 |
No |
Yes |
Yes |
|
Windows Server 2003 |
Yes |
Yes |
Yes |
|
Windows Server 2008 |
Yes |
Yes |
No |