i know..maybe you should try this trick..
i have try it.
right click the quick access toolbar and choose "more commands" if you don't know where is it, this the link Customize the Quick Access Toolbar - Support - Microsoft Office
then set "choose commands from" to "all commands" in the list of commands scroll down to "send to mail recipient"
click on send to mail recipient then click add. click OK on the bottom.
now you can use that tool to toggle ON/OFF emails header for sending the current windows contents as an email.
Good luck ~