SSI, Server Side Includes, are similar to RXML tags and have the
advantage of being a standard supported by many web servers. It is
thus possible to write pages using SSI that are portable to other web
servers.
The downside of SSI is that it is in no way as flexible or
powerful as RXML. The tags are placed within HTML comments, which
makes it impossible to combine different SSI tags. However, it is
possible to combine SSI tags with regular RXML tags.
Roxen WebServer does not presently implement all the SSI functionality
that Apache supports.
