There is only one general property you can set for a domain through the Active Directory Domains And Trusts Console: a description of the domain. The description appears in the console when you open the properties for the domain. The description can help you identify the purpose for the domain or keep track of other helpful information.
To set the description, click the domain and then choose Action | Properties. Click the Description field and type the description. The dialog box also shows other information, such as the domain functional level, forest functional level, and pre-Windows 2000 domain name.