[Zope] can I turn off <!--# syntax?

I'm working on a web site that uses Apache server side includes. This is causing Zope to freak out because the SSI syntax is identical to the alternate (older) Zope dtml syntax. <!--#exec cgi="/cgi-bin/includes/random_ad.pl"--> I thought of putting <dtml-comment> around them all, but I am certain that my client would object. Yours, Noah Spurrier