Microsoft Knowledge Base Article 311241 contains the following summary:

In the versions of Microsoft Office that are listed in the "Applies to" section, you no longer need a special transform to install Office on a Microsoft Windows 2000 server or a Microsoft Windows 2003 server with Terminal Services enabled, or on a Microsoft Windows NT 4.0 Terminal Server computer. Office Setup recognizes that it is running under Terminal Services, and therefore Setup preconfigures all the correct options.

Note You cannot install Microsoft Office 2003 on computers that are running Windows NT 4.0. All references to Windows NT 4.0 in this article are specific to Microsoft Office XP.