activate_all-in-one-seo-pack/all_in_one_seo_pack.php activate_all-in-one-seo-pack/all_in_one_seo_pack.php Share this:TweetLike this:Like Loading... Hook Type: actionSee hook in action See this hook used in plugins:Select Pluginall-in-one-seo-pack.4.6.8.1