Robohelp output for Salesforce and Force.com applications

Salesforce provides the force.com platform to let third-party developers develop their own cloud applications that run on Salesforce/force.com infrastructure/servers and share common services like login/authentication/database services, user interfaces, etc.. Salesforce provides help for its own applications, but obviously not for other independent apps. So, I need to generate help content that I can upload along with one of these outside application to Salesforce servers, so help links in the application's user interface can call up online help. I have not seen many resources from Salesforce on criteria/requirements for online help files they expect, other than it can display HTML pages and context help through bookmarks to specific locations within help files. I thought some people in the forum might have some advice about specific ways to use Robohelp to generate compatible help files for these types of Salesforce apps. Thanks.