SSI and SHTML
From KOP KB
Enabling SSI (Server Side Includes) on Unix
When you are working with a website with .shtml files and some elements are not working, you will need to make sure SSI is enabled on the account. Open the .htaccess file and look for the following:
Options -Indexes
And change it to:
Options +Indexes
This will turn on SSI parsing and .shtml files should start working. If the original line is not present (or there is no .htaccess) simply upload a .htaccess file with the Options +Indexes line.
