Thread:Project:Support desk/Display template on every page/reply (4)

Could vector.php be modified to display the output of a template? It looks like I could maybe use the Article object to get the template content, then throw it at $wgOut->addHTML. Seems messy... and I'd much rather try to do it IN the wiki. I could maybe make a special extension to do it... though, I've never done anything but special pages and parser/tag functions. Can an extension just blast out html without being called from an article?