I know the docs are beta as well but this section is marked as content complete. Under the heading How to Register the Edge Transport Server SCW Extension the command given is: scwcmd register /kbname:msexchangeedge /kbfile:%windir%\security\msscw\kbs\Exchange2007.xml What it does not say is that even though SCWCMD can be run from C:\ in this case (beta 2 at least) you must run it from %systemroot%\System32 otherwise you will get an access denied error.

Thanks, Rodney. I've forwarded this feedback to the topic owner to look into and fix as appropriate.