Some examples of using WMI through [TWAPI COM support].

All examples assume you have initialized with

  package require twapi 1.0
  set wmi [twapi::_wmi]

and remember to do a 

  $wmi -destroy

at the end

----

'''BIOS'''

Print [BIOS] information

  $wmi -with {
    {ExecQuery "select * from Win32_BIOS"}
  } -iterate bios { 
    puts [$bios GetObjectText_]
  }

Print a specific [BIOS] field

  $wmi -with {
    {ExecQuery "select * from Win32_BIOS"}
  } -iterate bios {
    puts [$bios BiosVersion]
  }