We are evaluating StrataFrame  for a workflow enable web development scenario, in which we need that every web page be inherited from a third  party base class (which support the workflow management), we are wondering how this could be implemented in StrataFrame if every page need to be inherited from the ApplicationBasePage.

Thanks in advance

This can be done farily easily.  When you purchase StrataFrame, you get the source code.  So really all you would need to do is create your own application base page which inherits the Workflow page, and then add our logic from our ApplicationBasePage.  This could all be done very easily.  However, since you are on a trial at the moment and do not have the source code, it makes it difficult until you have a license.  I hope that answers your question.  Also, FWIW, we do have other developers using workflows, so this is something that is relatively common.