Interpreting EMF spool file

I am developing remote printing driver through the use of EMF spool file. So
one machine (computer A) will generate EMF spool file and this file will be
printed on other (arbitrary) machine (computer B).

My questions are:
-how do I install specific font stored in EMF spool file on machine B ?
There are five different font types. I assume AddFontMemResourceEx should
work for EMRI_ENGINE_FONT and EMRI_TYPE1_FONT

but how do I install other three e.g. the EMRI_SUBSET_FONT

the documentation just mention: The EMRI_SUBSET_FONT record contains a subset of TrueType and OpenType fonts, which can be merged to form more complete fonts. An EMRI_SUBSET_FONT record defines enough glyph outlines for pages up to the current one.

which one record should be merge to the EMRI_SUBSET_FONT?

thanks