win32utils devel - Nov 2010 - Getting a home directory on windows

What do you think?

require ''win32ole''
require ''etc''

def get_windows_home_directory
  user = Etc.getlogin

  # Try the domain account first
  adsi = WIN32OLE.connect("WinNT://#{host}/#{user},user")
  home = adsi.homedirectory
  
  # If the homedirectory was blank, try the local account
  unless home.size?
    wmi = WIN32OLE.connect("winmgmts://")
    sql = "select * from win32_useraccount where name =
''#{name}''"
    sid = nil

    wmi.execquery(sql).each{ |u| sid = u.sid }

    # If the sid couldn''t be found for some reason then fall back to
using
ENV.
    # Otherwise use the registry value.
    if sid.nil?
      home = ENV[''USERPROFILE''] ||
ENV[''HOME'']
    else
      require ''win32/registry''
      key = "SOFTWARE\\Microsoft\\Windows
NT\\CurrentVersion\\ProfileList\\"
+ sid

      # If this fails it probably means the registry value could not be
found
      # and we again fall back to using ENV.
      begin
        Win32::Registry::HKEY_LOCAL_MACHINE.open(key) do |reg|
          home = reg[''ProfileImagePath'']
        end
      rescue Win32::Registry::Error
        home = ENV[''USERPROFILE''] ||
ENV[''HOME'']
      end
    end
  end

  home
end