mod_so

LoadModule

Activates the module for this runtime instance

ClearModuleList

Wipes the slate on the module order; assumes the order will be repopulated with AddModule

AddModule

Adds a module to stack of enabled modules

By cleverly positioning IfModule stanzas in httpd.conf as they are in the default example for mod_mime_magic:

<IfModule mod_mime_magic.c>
    MIMEMagicFile /ServerRoot/conf/magic
</IfModule>

we can dynamically reconfigure our server merely by commenting out or uncommenting the applicable LoadModule and AddModule directives and restarting our server.