http://www.microsoft.com/technet/security/tools/urlscan.mspx should give you the information you need.
Cheers
Ken
[quoted text, click to view] "Marlon Brown" <marlon_brown@hotmail.com> wrote in message
news:ufKbL5UBFHA.1656@TK2MSFTNGP11.phx.gbl...
>I am wondering whether it is a good idea and necessary setup URLScan &
> iiscantool on my new Win2003+EXch2003 OWA box ?
>
> Also, I was told that I could run the URLScan on the ISA 2004 box and that
> should protect my FE 2003 servers.
>
> Please confirm which version of URLScan and iiscantool I should be
> installing on such Win2003 servers.
>
>