LaTeX.org

Thanks to notepad++ I was able to write an abstract in Greek under windows xp.

Ιn the preamble of the latex document I put:
\usepackage[greek]{babel}
\usepackage[iso-8859-7]{inputenc}

Then in notepad++ I click on
Encoding > Character sets > Greek > ISO 8859-7

I press Alt+Shift and start typing ...