The object files and object modules in the libraries and import libraries provided with the SDK contain the following OMF records:
| Record type | Identifier |
| THEADR | 80h |
| COMENT | 88h |
| DOSSEG | 88h, 9Eh |
| IMPDEF | 88h, A0h, 01h |
| EXPDEF | 88h, A0h, 02h |
| LIBMOD | 88h, A3h |
| MODEND | 8Ah |
| EXTDEF | 8Ch |
| PUBDEF | 90h |
| LINNUM | 94h |
| LNAMES | 96h |
| SEGDEF | 98h |
| GRPDEF | 9Ah |
| FIXUPP | 9Ch |
| LEDATA | A0h |
| LIDATA | A2h |
| COMDEF | B0h |
| LEXTDEF | B4h |
| LPUBDEF | B6h |
This chapter describes the EXPDEF, IMPDEF, LEXTDEF, LIBMOD, and LPUBDEF records. The rest of the records listed are documented in The MS-DOS Encyclopedia.