Windows-format metafiles

[Aric Stewart]

Hello all,

  I am doing so work trying to flesh out he implementation of
SetWinMetaFileBits and as such need documentation on Windows-format
metafiles (not enhanced metafiles i have that) There must exist specs
and documentation from old 3.1 days, but I am having no luck finding it. 

  Does anyone have pointers as to where i could find a spec for the
windows format metafiles to help me out?

thanks
 -aric