PE文件格式最近似乎炒得沸沸扬扬，由于我正在做一个这样的程序，索性将自己的心得写出来与大家同享。
PE文件头分两大部分：
1：DOS ‘MZ’ HEADER
2：IMAGE_NT_HEADERS
其中IMAGE_NT_HEADERS中包含
PE signature
IMAGE_FILE_HEADER
IMAGE_OPTIONAL_HEADER（其中包含Data Direcotry）
文件头后紧跟着为
Section Table (array of IMAGE_SECTION_HEADERs)
在Delphi的windows.pad中已经有定义的有：
TImageDosHeader;
TImageNtHeaders;
TImageSectionHeader; { size of TIm..der is $28 }
定义变量后按住Ctrl可以察看具体的项目，这里我就不多说了，这方面的东西也很多。
而其他的如TImageResourceDirectory等，在DELPHI中却没有定义，察看其他资料，我在这里给出他们的结构和简单说明：
以下是我写的PEDump.exe的类型说明：
type
PIMAGE_RESOURCE_DIRECTORY = ^TImageResourceDirectory;
_IMAGE_RESOURCE_DIRECTORY = packed record
Characteristics:DWord;
TimeDateStamp:DWORD;
MajorVersion:WORD;
MinorVersion:WORD;
NumberOfNamedEntries:WORD;
NumberOfIdEntries:WORD;
end;
TImageResourceDirectory = _IMAGE_RESOURCE_DIRECTORY;
{ 资源目录的格式说明 }
PIMAGE_RESOURCE_DIRECTORY_ENTRY = ^TImageResourceDirectoryEntry;
_IMAGE_RESOURCE_DIRECTORY_ENTRY = packed record
Name:DWORD; { NameOffset:31,NameIsString:1 }
// Id:WORD;
OffsetToData:DWORD; { OffsetToDirectory:31,DataIsDirectory:1 }
end;
TImageResourceDirectoryEntry = _IMAGE_RESOURCE_DIRECTORY_ENTRY;
{ 资源目录进入点的格式说明 }
PIMAGE_RESOURCE_DIRECTORY_STRING = ^TImageResourceDirectoryString;
_IMAGE_RESOURCE_DIRECTORY_STRING = packed record
Length:WORD;
NameString:CHAR;
end;
TImageResourceDirectoryString = _IMAGE_RESOURCE_DIRECTORY_STRING;
{ 资源目录名的格式说明 }
PIMAGE_RESOURCE_DIR_STRING_U = ^TImageResourceDirStringU;
_IMAGE_RESOURCE_DIR_STRING_U = packed record
Length:WORD;
NameString:WCHAR;
end;
TImageResourceDirStringU = _IMAGE_RESOURCE_DIR_STRING_U;
{ unicode形式的资源目录名的格式说明 }
PIMAGE_RESOURCE_DATA_ENTRY = ^TImageResourceDataEntry;
_IMAGE_RESOURCE_DATA_ENTRY = packed record
OffsetToData:DWORD;
Size:DWORD;
CodePage:DWORD;
Reserved:DWORD;
end;
TImageResourceDataEntry = _IMAGE_RESOURCE_DATA_ENTRY;
{ 资源目录数据进入点的格式说明 }
const
IMAGE_RESOURCE_NAME_IS_STRING = $80000000;
{ 检测TImageResourceDirectoryEntry.Name的最高为是否设立，
是则说明剩下的31位指向IMAGE_RESOURCE_DIR_STRING_U的偏移，
否则说明剩下的31位为一个整数ID。 }
IMAGE_RESOURCE_DATA_IS_DIRECTORY = $80000000;
{ 检测TImageResourceDirectoryEntry.OffsetToData的最高为是否设立，
是则说明剩下的31位指向另一个IMAGE_RESOURCE_DIRECTORY的偏移，
否则说明剩下的31位指向IMAGE_RESOURCE_DATA_ENTRY的偏移。 }
{ 以下是文件属性具体值常量说明 }
{ File Characteristics }
IMAGE_FILE_RELOCS_STRIPPED = $0001; // Relocation info stripped from file.
IMAGE_FILE_EXECUTABLE_IMAGE = $0002; // File is executable.
IMAGE_FILE_LINE_NUMS_STRIPPED = $0004; // Line nunbers stripped from file.
IMAGE_FILE_LOCAL_SYMS_STRIPPED = $0008; // Local symbols stripped from file.
IMAGE_FILE_AGGRESIVE_WS_TRIM = $0010; // Agressively trim working set
IMAGE_FILE_LARGE_ADDRESS_AWARE = $0020; // App can handle >2gb addresses
IMAGE_FILE_BYTES_REVERSED_LO = $0080; // Bytes of machine word are reversed.
IMAGE_FILE_32B99v_MACHINE = $0100; // 32 bit word machine.
IMAGE_FILE_DEBUG_STRIPPED = $0200;
// Debugging info stripped from file in .DBG file
IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP = $0400;
// If Image is on removable media, copy and run from the swap file.
IMAGE_FILE_NET_RUN_FROM_SWAP = $0800;
// If Image is on Net, copy and run from the swap file.
IMAGE_FILE_SYSTEM = $1000; // System File.
IMAGE_FILE_DLL = $2000; // File is a DLL.
IMAGE_FILE_UP_SYSTEM_ONLY = $4000; // File should only be run on a UP machine
IMAGE_FILE_BYTES_REVERSED_HI = $8000; // Bytes of machine word are reversed.
{ 以下是文件头机器属性值的具体说明 }
{ Machine }
IMAGE_FILE_MACHINE_UNKNOWN = $0;
IMAGE_FILE_MACHINE_I386 = $014c; // Intel 386.
IMAGE_FILE_MACHINE_R3000 = $0162; // MIPS little-endian, $160 big-endian
IMAGE_FILE_MACHINE_R4000 = $0166; // MIPS little-endian
IMAGE_FILE_MACHINE_R10000 = $0168; // MIPS little-endian
IMAGE_FILE_MACHINE_WCEMIPSV2 = $0169; // MIPS little-endian WCE v2
IMAGE_FILE_MACHINE_ALPHA = $0184; // Alpha_AXP
IMAGE_FILE_MACHINE_SH3 = $01a2; // SH3 little-endian
IMAGE_FILE_MACHINE_SH3E