_, err = sr.Seek(base+int64(binary.Size(f.FileHeader)), io.SeekStart)
	if err != nil {
		return nil, err
	}

	// Read optional header.
	f.OptionalHeader, err = readOptionalHeader(sr, f.FileHeader.SizeOfOptionalHeader)
	if err != nil {
		return nil, err
	}

	// Process sections.
	f.Sections = make([]*Section, f.FileHeader.NumberOfSections)
	for i := 0; i < int(f.FileHeader.NumberOfSections); i++ {

				fh.Characteristics |= pe.IMAGE_FILE_RELOCS_STRIPPED
			}
		}
	}
	if pe64 != 0 {
		var oh64 pe.OptionalHeader64
		fh.SizeOfOptionalHeader = uint16(binary.Size(&oh64))
		fh.Characteristics |= pe.IMAGE_FILE_LARGE_ADDRESS_AWARE
	} else {
		var oh pe.OptionalHeader32
		fh.SizeOfOptionalHeader = uint16(binary.Size(&oh))
		fh.Characteristics |= pe.IMAGE_FILE_32BIT_MACHINE
	}

	fh.PointerToSymbolTable = uint32(f.symtabOffset)