typedef struct _IMAGE_FILE_HEADER { WORD Machine; WORD NumberOfSections; DWORD TimeDateStamp; DWORD PointerToSymbolTable; DWORD NumberOfSymbols; WORD SizeOfOptionalHeader; WORD Characteristics; } IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER;
Characteristics The characteristics of the image. This member can be one or more of the following values. Value Meaning IMAGE_FILE_RELOCS_STRIPPED 0x0001 Relocation information was stripped from the file. The file must be loaded at its preferred base address. If the base address is not available, the loader reports an error. IMAGE_FILE_EXECUTABLE_IMAGE 0x0002 The file is executable (there are no unresolved external references). IMAGE_FILE_LINE_NUMS_STRIPPED 0x0004 COFF line numbers were stripped from the file. IMAGE_FILE_LOCAL_SYMS_STRIPPED 0x0008 COFF symbol table entries were stripped from file. IMAGE_FILE_AGGRESIVE_WS_TRIM 0x0010 Aggressively trim the working set. This value is obsolete. IMAGE_FILE_LARGE_ADDRESS_AWARE 0x0020 The application can handle addresses larger than 2 GB. IMAGE_FILE_BYTES_REVERSED_LO 0x0080 The bytes of the word are reversed. This flag is obsolete. IMAGE_FILE_32BIT_MACHINE 0x0100 The computer supports 32-bit words. IMAGE_FILE_DEBUG_STRIPPED 0x0200 Debugging information was removed and stored separately in another file. IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP 0x0400 If the image is on removable media, copy it to and run it from the swap file. IMAGE_FILE_NET_RUN_FROM_SWAP 0x0800 If the image is on the network, copy it to and run it from the swap file. IMAGE_FILE_SYSTEM 0x1000 The image is a system file. IMAGE_FILE_DLL 0x2000 The image is a DLL file. While it is an executable file, it cannot be run directly. IMAGE_FILE_UP_SYSTEM_ONLY 0x4000 The file should be run only on a uniprocessor computer. IMAGE_FILE_BYTES_REVERSED_HI 0x8000 The bytes of the word are reversed. This flag is obsolete.