Hi, Bernard:

Just go to C:\Program Files\Midinotate\Composer (before installing, and copy the Songs and Recover folders to another name. Do your install with the new version of Composer and let it overwrite the old stuff, then copy or move the contents of the Songs and Recover folders back to the original ones.

If you don't have any songs in the Songs or Recover folders you need to worry about, then just go ahead and install over top of the old Composer.

That's what I just did and it works fine.

David