You can only do it using third party tools, Windows 2000 does not have
built-in features to do it. Search the internet for "folder password"
and you will find more information.
Folder Access is a software which will assist
you to to protect your private data from unwanted access.
Folder Access does not change your data so there is no chance of any data loss.
Folder Access has a very easy to use interface and the security
of your data is always a mouse click away.
Folder Access is integrated with windows explorer
context menu so all you have to do is right click a folder
and click on Lock Folder menu option or to unlock click on UnlockFolder menu option.
Folder Access is very fast in locking and unlocking folders
so you will have never to wait for locking or unlocking a folder.
Is not working on chinese, arabic versions of windows