Instead of writing a description list, I would use a package which is capable of sorting. My choice would be the glossaries package. This package uses makeindex, just as nomencl does.
First, you need to download perl if you don't have it.
Then, open a terminal. On windows, go to your working directory containing your MyLatexDocument.tex Type latex MyLatexDocument
Your doc is compiling, and the files MyLatexDocument.glo MyLatexDocument.ist MyLatexDocument.glg and MyLatexDocument.gls are created.
Type the command makeindex MyLatexDocument.glo -s MyLatexDocument.ist -t MyLatexDocument.glg -o MyLatexDocument.gls
Finally, compile again: Type latex MyLatexDocument
I am using Code::Blocks
Do you reckon it's fine?
I am not sure whether or not this editor is capable of calling makeindex for us. Do you know about this?