Use REGISTRY SHARES instead of USER SHARES
* These are a lot more configurable (more possibility to customize the share).
* On some machines, there is a "global" share. This isn't really a share,
  but the possibility to modify global options. So first get a line of
  _real_ shares using 'net conf listshares' and _then_ cyckle through
  them retrieving info with 'net conf showshare <share>'.