Almost did it!
XXCOPY has /SG switch that gathers files into one-level directory and it works as intended.
It also has another one to copy files as hardlinks /MLH.
Then while xxcopy c:\sourcedir\nesteddirs c:\destdir /SG
works nicely for normal files.xxcopy c:\sourcedir\nesteddirs c:\destdir /SG /MLH
just copy as hardlinks the files, if any, from the source dir but ignores the files from nested dirs.
But well, it's a little more progress.
BTW are you the same f0dder in osnews.com?
Is it possible to do the same but instead of shortcuts, hardlinks or softlinks?