> I want to add Arabic language to the Httrack program, but 
I 
> not succeeded to make it, because Arabic characters do 
not 
> display in Httrack. I have changed the coding system of 
> characters (LANGUAGE_CHARSET :ISO-8859-6)

You should use CP-1256 instead (the windows Arabic codepage)

> Arabic characters are not Latin. What's the solution?, 

With CP-1256 it may work - But I fear that the right-to-
left handling will not be supported automatically, 
unfortunately - and I don't have yet any clue on how to do 
that.