Opens the Internet Explorer Save Web Page dialog box or the Save dialog box of the hosted document if it is not an HTML page.
You can use this method to implement a Save As menu item similar to the one on the Internet Explorer File menu. The dialog box that appears when this method is called depends on the document type currently loaded.
This method allows users to save only the contents of the document as it was originally loaded. Any modifications made to the document at run time through the WebBrowser.Document property are not persisted. For information on retrieving the run-time modifications, see How to: Access the HTML Source in the Managed HTML Document Object Model.