I highly recommend that you do not use a workgroup name that is the same as your domain name. This will cause problems with your Browse list and confusion among your users. A better solution, from a security standpoint (and general network management standpoint), is to completely disable the browser service so that resources are not accessible via a browse list. Then publish the resources in the Active Directory that you want to clients to be able to access. You will need to install the Active Directory client software on the Win9x computers to allow them to access network resources via the Active Directory published list.
This was first published in March 2002