It seems a fairly common misconception is that to be able to use Windows 7 in a Windows or should I say Active Directory environment one need to have either Windows Server 2008 or Windows Server 2008 R2 domain controllers. There are also misconceptions about the need to raise the forest and domain functional levels to be able to use the full power of Windows 7. Neither of these are true.
You can get all the same features if you are using Windows Server 2003 domain controllers and that is also regardless of which forest or domain functional levels you are running with. The most common misconceptions are:
- Group Policy Preferences. Work very well in a 2003 domain. However you need to manage the group policies from a Windows 7 or Windows Server 2008 R2 machine using Group Policy Management Console found in the Remote Server Administration Tools.
- BitLocker. To store recovery keys in AD you need to extend the schema. If you have a domain controller that is running Windows Server 2008 or later you have what it takes, if you are running Windows Server 2003 on your domain controllers you simply extend the schema.
I must add that you get stronger encryption for Kerberos by using Windows Server 2008 domain functional level though but the bottom line is that the functionality of the Windows 7 client is the same regardless of forest or domain functional levels.