title: Is it possible to launch Word 365 in a browser from a web app to edit documents regardless whether the user has an office 365 license?
body: <p>My local school allows me to log in to their online portal and access an email account using Outlook 365 within the browser, despite the fact I do not have a license for outlook/office 365.</p>
  
  <p>Is it possible to create a web application where users of this app could click a link to edit a document directly in their browser using Word 365, with us/the developers of such app being the licensee of Word and not the end-user?  The remote document would be held in a Sharepoint/Webdav capable service.</p>
  
  <p>If this is possible, which MS-technologies should we investigate to develop such a system?  Is it the MS-Graph API or something else?</p>
  
  <p>A pointer in the right direction would be greatly appreciated.</p>
  
  <p>Thanks!</p>