What I'm trying to achieve is to write a file from a guest OS to a host.
In this case both are Windows OS.
I use the user network command line options since I looking for a no
install on host, portable solution.
I've tried various build in solutions: -tftp (read-only), and -smb (not
supported in windows host) do me no good.
What I manage to do with a certain success is to map network shares of the
host in the guest (net use z: >10.0.2.2>\MyShare in the guest). I can
browse and read files from the mapped drive. However I can't write to it
from the guest. I received an Access Denied message instead even if the
share is set so Everyone has Full Control.