How do I limit user profile space?

Start the System Policy editor (poledit.exe)

Load the templates Common.adm and Winnt.adm (from the Options menu select"Policy Template" from the %systemroot%inf directory)

Create a new policy (File - "New Policy")

Open Default User, and then expand Windows NT User Profiles.

When you select Limit Profile Size, the following option are available:
- Custom Message - The text in the dialog box that appears when the user'sprofile exceeds the quota.
- Max Profile Size - The maximum size of the user profile. This value defaultsto 30,000 KB, so administrators will want to carefully consider how low theyset this value. This is especially true, given the fact that users will not beable to successfully log off if their profile is too large.
- Include registry in file list - When the user exceeds the profile quota, anerror icon appears in the system tray. Double-clicking the icon brings up atool that lists all the files in the profile, as well as the file size from thelargest file to the smallest. By default, the list does not include files thatare smaller than 2 KB. Users can consult this list to determine which files canbe erased, moved to server-based storage, or backed up to offline storage. Whenthis option is checked, the users' registry settings, Ntuser.dat, will beincluded in the list. Users cannot delete this file.
- Notify user when profile storage space is exceeded - By default, users willget a dialog box informing them that their user profile is too large only whenthey attempt to log off. With this option selected, a dialog box appears assoon as the profile reaches the quota size, and at a configurable intervalthereafter.

A second option is to select "Exclude directories in roamingprofile" which does not include specified directories as part of the usersprofile

Once complete save the file to the netlogon share of the domain controlleras NTCONFIG.POL