Property Modifier (variant 2) (PRM)

In the second variant, prm.fComplex is 1, and the rest of the structure records an index to a grpprl stored in the CLX (described in Complex File Format topic).

b10b16fieldtypesizebitfieldcomment
00fComplexshort:10001set to 1 for variant 2
  igrpprlshort:15FFFEindex to a grpprl stored in CLX portion of file.

cbPRM (count of bytes of PRM) is 2.