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).
| b10 | b16 | field | type | size | bitfield | comment |
| 0 | 0 | fComplex | short | :1 | 0001 | set to 1 for variant 2 |
| igrpprl | short | :15 | FFFE | index to a grpprl stored in CLX portion of file. |
cbPRM (count of bytes of PRM) is 2.