The domain controller you are using is running Windows 2000, and the GPO you selected contains application installation settings. ...

The domain controller you are using is running Windows 2000, and the GPO you selected contains application installation settings. This set of conditions might require that users later reinstall some applications. To help avoid potentially requiring users to reinstall some applications, restore this GPO using a domain controller running Windows Server 2003, if one is available. 
Do you want to use the current domain controller to restore the GPO?