Hi Sara,
Based on your reply, I gather that you may not be familiar with the various file formats, and how they work. Let me try and give a simple explanation:

(a) .not file. This is MidiNotate (Composers) own file format and it store all the note, stave, part, lyrics stuff. Pc's and generic windows programs can't do very much with that file (apart from copy it). The only programs that can make sense of them are the MidiNotate group of programs. These programs, besides displaying score on the screen, and printing it out, also generate a 'midi' output.

(b) 'midi' file. This file is fairly standard way of communicating music. It doesn't actually have sound on it, but is more like the old pianola roll which has holes in the paper for when notes are switched on and off. A midi file has standard instructions for when notes are on & off, and what instrument and how loud. But there is no actual sound wave in the midi file.

(c) 'wave' file. This file is a series of numbers that describe the shape of the actual sound wave. Its like looking at the sound wave pattern on an oscilloscope, or in the old vinyl records the shape of the grove on them.

To be able to go from a '.not' file to a '.wav' file, you need to go through the steps of producing and converting these three files:
eg:
1. Composer converts from a '.not' file to 'midi'
2. Your sound card converts from 'midi' to 'wav'. (other programs like Roland Virtual sound card do this conversion as well).


If the above is reasonably clear, then the question I have for you, is:

Are you able to play your '.not' files so you hear the sound on your computer (assuming you have speakers on your system)?'

If the answer is No, then you have a problem at stage one of the process - ie, going from a not file to midi.
If the answer is Yes, then I think your problem is how to convert from midi to wav.

A test I would apply on your computer is to save your Composer score as a 'midi' file and then double click on that saved file. If 'Windows Player' plays that for you - then you are almost there - at least your computer is translating midi to wav.

Apologies for being long winded - there are many things happening in going from a '.not' file to '.wav' and if you are having problems, its a matter of trying to isolate where things are getting messed up. The initial step is to halve the problem, by making sure your computer will play a 'midi' file.

If I have missed the point of your question, please let me know, and perhaps try to clarify it for me. It maybe that others on the forum have better understood, and may like to jump in and answer your question.

cheers ... Clyde