When I attempt to use the API help (the default online / live version) the response time can be seamless, but more often is measured in minutes and somewhat regularly errors with a message that the help server is not responding.
I am curious if other see anything similar? Is this API help in general; perhaps related to my aged version; or something specific to my installation? In general, we have a solid high-bandwidth internet connection.
Don't user online help. Use offline API Help (Un-tick "Use SOLIDWORKS Web Help"). This is lot faster and has intelligence. You just type "imodel" in Index tab and it will list all items starting with "imodel" e.g. IModelDoc2, IModelDocExtension.