Because you can link a GPO to sites, domains, or organizational units (OUs), you can control how Win2K applies Group Policy at several levels. But you can't truly control Group Policy until you understand the processing options that let you fine-tune your policies. In 'Controlling Group Policy, Part 1,' November 2000, I explained how Windows 2000 uses Group Policy Objects (GPOs) and the sequence in which Win2K applies them.