| release='', version='', csd='', ptype='') | 
(version, csd, ptype)
  referring to version number, CSD level and OS type (multi/single
  processor).
As a hint: ptype is 'Uniprocessor Free' on single
  processor NT machines and 'Multiprocessor Free' on multi
  processor machines. The 'Free' refers to the OS version being
  free of debugging code. It could also state 'Checked' which
  means the OS version uses debugging code, i.e. code that
  checks arguments, ranges, etc.