Administrators are authenticated by their membership in a Microsoft® Windows NT® or Windows® 2000 group that has read/write permission on the Eval database. Creating a Group Account for PT Administrators on Windows 2000 and Creating a Group Account for PT Administrators on Windows NT 4.0 describe how you create a group account containing the aliases of all users allowed to access the PT Admin application. Adding a New SQL Security Login for PT Administrators on Windows 2000 and Adding a New SQL Security Login for PT Administrators on Windows NT 4.0 describe how to create a login that allows users who belong to the PT Administrators group to read from and write to the Eval database.