Yep, think Jack is saying the right thing.

As an FYI a Windows 9x system can not join a Domain there is no such functionality. It can belong to a WORKGROUP with the SAME name as the Domain and process the logon script of the NT Domain, but it is not "joined in the sense that an NT system is". Windows 9x was built for home users but gained such popularity back then that it quickly gained a foot hold in the Corporate World. Users liked the look and feel of it much more than NT 3.51 and NT 4.0 for the desktop.