The Microsoft COFF Binary File Editor (EDITBIN.EXE) modifies 32-bit Common Object File Format (COFF) binary files. You can use EDITBIN to modify object files, executable files, and dynamic-link libraries (DLLs).
Note EDITBIN runs only from the command line.
EDITBIN converts the format of an Object Module Format (OMF) input file to COFF before making other changes to the file. You can use EDITBIN to convert the format of a file to COFF by running EDITBIN with no options.