Hide task bar on NT

On server go to start, programs, administrative tools,system policy editor.

To create a new policy for a domain

1 On the File menu, click New Policy.

2 To specify the computers to which your Registry-setting changes will apply, you can do the following:

Double-click Default User to change HKEY_CURRENT_USER Registry settings for all computers on the domain.
Double-click Default Computer to change HKEY_LOCAL_MACHINE Registry settings for all computers on the domain.

3 To add to the Registry settings, click Commands on the Edit menu to do the following:

To change HKEY_CURRENT_USER for specific users, click Add User.
To change HKEY_LOCAL_MACHINE for specific computers, click Add Computer.
To change HKEY_CURRENT_USER for specific groups click Add Group.

4 If necessary, finish configuring policy settings for any other policy files you have added, and then click Save As on the File menu.
5 In Save in, specify the Netlogon folder on the primary domain controller (PDC), such as:

\\PDCServerName\netlogon.

6 In File name, type NTconfig.pol, and click Save.

The policy is enforced on each computer running Windows?NT Workstation or Windows?NT Server when users log on