A brief listing of keyboard shortcuts for using diacritical marks; and the unrelated discussion on the topic of "How to open things", ie. email attachments from Mac and P.C. users, etc.

I, for example often open attachments in Graphic Converter v. 4.6 (http://www.lemkesoft.com/) for opening graphics. which was at one time included with other Mac programs. I also use ToyViewer, v. 4.90 for Mac OSⁱ X 10.4 (Tiger) from OGIHARA Takeshi
found on the web page: http://www7a.biglobe.ne.jp/~ogihara/software/index.html.