In that case you really need a Truetype font. Look for a font that has arabic characters, but only 128 or 256 characters. That's not a Unicode font and will work with char* and STRING*.

In the strings in your script, you then need to type the ASCII equivalent of a certain Arabic letter. This won't look arabic, but will with that font. You can temporarily switch SED to the Arabic font for seeing it.

Maybe, you can use a non Unicode font from here:

http://www7.bev.net/civic/icb/ICB_Arabic.html

I actually don't know what's the problem with your code, i just use Truetype and then i type in Arabic, sometimes i have to flip the words, like... الجمل Cheese. I'll have to write it like this: لمجلا eseehC.
And it'll work.

Is there a way to let the game automatically install the font, if it doesn´t exist in the Windows Directory?