Well, I was very hopeful. But when I went into the computer & looked around, all I found under C:\ProgramFiles\Notation was;
BACKUP, Player, Uninstall Notation Player 2.5.2.exe and Uninstall Notation Player 2.5.2.log
So then I started from scratch and downloaded Composer again, and then went in and looked around, but it wasn't in a Folder or in Program Files yet (guess cuz' it was only Downloaded and not actually Installed). But I only ended up back at the Wizard again and so I ran it and it of course gave me the same Decompression Error as usual.
So I'm not sure how else to find the Templates\MidiFileDefault.not - maybe I'm not following your last instructions correctly or something, although I think I am.
Sorry to be a pain. I just don't get it, as I said I can Download anything else. Just not this for some odd reason.
Don't know where else to get help or who else might know what's going on. But as a last ditch effort on my part, I think I'll try downloading Musician instead and see if that presents with the same problem or not. Will let you know shortly.