This is an extension for Internet Explorer 8 and later that allows you to view an outline of webpages and make intrapage bookmarks.
After install, from the menu select View, then Explorer Bars, then Outline to open the IE Outline View sidebar.
While viewing an HTML document an outline of the document is displayed. Selecting an item in the outline will scroll the document to the corresponding position. Scrolling the document manually shows you where you are in the outline by updating the selection to the corresponding outline entry.
Making a text selection and then clearing it adds that selection as a temporary intrapage bookmark 'Temporary Mark' to the outline. Right click the temporary mark and select 'Make Permanent' to make the mark permanent for that page. Right click a temporary or permanent mark and select 'Remove' to remove the mark.
Download and run the following executable to install the extension. Internet Explorer 8 or later is required.