How I can change the English typing to Farsi?I know that these engines take advantage of the built-in Windows language tools. After you've installed Persian Fonts, and the engine is running properly, simply press Alt + Left Shift unless you are instructed to press other shortcuts or keys. Since I couldn't find anything about this, I believe this is the way to do it. You can use Google Input Tools as well.
FarsiWeb has released the first standard set of Unicode Persian fonts ever published, including Elham, Terafik, Terafik Bold, Titr, Roya, Roya Bold, Koodak, Nazli, Nazli Bold, and Homa.
The main advantage over legacy fonts is compliance with the Unicode, ISIRI 6219, and OpenType standards, and the addition of required but missing glyphs for Persian information processing. The fonts are highly recommended if you care for proper Persian display on your computers.