Although Vazhe_Negar is truely the shittiest piece of software, it's still unbeaten.
Your only alternative is to get someone in Iran to get you the CD that has like 100 FARSI EDITORS in it! That CD rocks, but I don't have it. I wish I did.
Once I figured out if I sit down and write the code for a very nice Farsi Editor that is at least as good as Vazhe-Negar but with less flaws it would cost me about $4000-$5000. I also figured, I could never make that much money out of Iranians, so F*** it!