The binder supports a modified extended object module (XOBJ) and an object module format called generalized object file format (GOFF). Both XOBJ and GOFF support long names and reentrant C modules. In addition, GOFF format supports multipart modules, ADATA, and XPLINK enabled code.

Additionally, the binder supports C reentrant modules, dynamic linking, and dynamic link libraries. All object module formats can be stored as sequential files, as members of PDS or PDSE libraries or members of z/OS® UNIX archive libraries.