A friend of mine is using the default Windows Mail as email client in Windows 8.1. He is also using LibreOffice as word processing application and gets always an error message when he tries to use the "Send As Email" option from within a LibreOffice document. Apparently it is necessary to set an association in Windows 8.1 to use Windows Mail as default MAPI application. However, for that it would be necessary to find the actual application (exe) file for Windows Mail - and I cannot find this. This file is not in the Windows Mail folder that is in the Program Files folder (see enclosed screen shot). Is it possible to create a MAPI association for Windows Mail in Windows 8.1 or could it be that Windows Mail is not a MAPI application? Where I can find the Windows Mail application (exe) file?