Abstract: Disclosed is a method, in a system (FIG. 5) comprising a user computer (509) (509) and a SharePoint server (506) (506), of enabling, using Outlook (514) running on the user computer (509), document management of files stored by the SharePoint server (506). The method comprises executing (1001) Outlook (514) (514) on the user computer (509) thereby creating an Outlook display window, invoking (1002), using a DMF client application (511) (511) running on the user computer (509), a software application (512) (512) (509) to create a DMF pane (516) (101) in the Outlook display window (102), and then retrieving displaying and updating a displayed tree view of the user's SharePoint environment, either from a DMF client side cache (510) (510) (509) or, if the DMF client side cache (510) is unavailable, from a DMF web service application (507) (507) running on the SharePoint server (506).