Hi Peter, is this of assistance:
Setting Quotas for Disk Usage
1. In an Explorer window (choose Start | My Computer), find the drive
or partition for which you want to set quotas.
2. Right-click the drive or partition and choose Properties from the
shortcut menu. You see the Properties dialog box for the drive or partition.
3. Click the Quota tab. (The Quota tab doesn't appear for FAT32 and FAT
drives.)
4. Select the Enable Quota Management check box. If you don't want to
let people exceed their quotas, select the Deny Disk Space To Users
Exceeding Their Quota Limit check box (otherwise, Windows displays a
warning, but still allows the file to be stored).
5. Click the Limit Disk Space To xx radio button, and set the box to
its right to the limit you want to set for new user accounts. Set the amount
of space at which you want users to receive a warning, too. Be sure to
change the right-hand box from KB to MB unless you are setting a very small
limit.
6. If you want Windows to create a system log entry each time a user
goes over quota, select one or both of the check boxes at the bottom of the
dialog box.
7. To set limits for existing user accounts, click the Quota Entries
button. You see the Quota Entries dialog box. Widen the Name and Logon Name
columns by dragging the column header dividers rightward, so you can read
the user account names. Listed users who are under their quotas appear with
"OK" in the Status column.
8. The Quota Entries dialog box includes an entry for the
Administrators group account, with no limit. To set a limit for a user
account, choose Quota | New Quota Entry from the menu bar, or click the New
Quota Entry button on the toolbar. You see the Select Users dialog box:
9. Type a user account name into the Enter Object Names To Select box
and click OK. You see the Add New Quota Entry dialog box:
10. Click the Limit Disk Space To xx radio button, and set the limit. Click
OK.
11. You can change the limits for existing quotas by selecting the entry in
the list in the Quota Entries dialog box and clicking the Properties button
on the toolbar (or by right-clicking the entry and choosing Properties from
the menu that appears).
12. When you are finished setting quotas, close the Quota Entries dialog
box and the Properties dialog box for the drive or partition.
