io have a NWC2MID.exe but i can't convert whith it if you can help me!!
Is that executable still supported by NWC? It appears to be a NWC1-era command line tool. Perhaps NWC left it on the web site, where search engines can find it, but did not intend to do that?
it's still here:
http://www.noteworthysoftware.com/composer/download.htm
NoteWorthy Composer MIDI File Converter
Rachid, do you need the program? You should be able to save directly to midi format from either version of NWC.
In version 1, use File/Save As and in version 2, use File/Export.