[development] Subsite

We have a copy of our pre-Drupal HTML site and would now like to resurrect a portion of it. Is it possible to have a plain HTML site as a sub-site of the Drupal site? I have done it the other way around, so I suspect it is possible. Are there any gotchas I need to be aware of (other than Apache redirects that have to be removed)?   Nancy   Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King, Jr.