[Samba] smbldap-useradd when to use -i, -w, or -W

[John Heim]

When configuring samba to use smbldap-tools to automatically add a machine 
to a domain, how do I know whether to use the -i, -w, or -W option to 
smbldap-useradd.?

-i    is a trust account (Windows Workstation)
  -w    is a Windows Workstation (otherwise, Posix stuff only)
  -W    is a Windows Workstation, with Samba atributes (otherwise, Posix 
stuff only)