I have followed the link https://autohotkey.com/boards/viewtopic.php?f=6&t=9043 in jeeswg's post and have used the script MsgBoxGui.ahk to produce a msgbox that does exactly what I wanted. I can change the font and font size to suit my requirements.

Thanks again for all your help

Thank you all, I will follow up on the leads in your posts, this will give me plenty to work on.

Is it possible to change the font size in Msgbox?