Then add "IUSR_SCOTLAND" to the directory permissions.
To do this, right click on the file and select properties.
Under the properties window, click on the securities tab.
Click on "add" and type in the lower window pane "IUSR_SCOTLAND".
Once you see the user in the list of allowed instances click "okay".
Anybody can now access the contents of this folder via the following URL:
http://scotland.cs.berkeley.edu/cs285/'LOGIN'/public
Make sure you don't add the user "IUSR_SCOTLAND" to files or directories
you don't want anybody other than yourself to have access.