信息来源：ZwelL’s blog

用VC创建不导入任何DLL的WIN32程序

http://blog.vckbase.com/Files/BastEt/testnodll.zip
VC2003编译，我想用VC6肯定也能编译通过，不过机器上没装，哪个有空帮我看看在VC6下能达到多少字节？
#define WIN32_LEAN_AND_MEAN
#define WINVER 0x0500
#include

//==========================好麻烦的结构啊，晕死他的BOOLEAN了，搞得不能对齐。==========
#pragma pack(push,8)

typedef struct _PEB_LDR_DATA
{
ULONG Length;
BOOLEAN Initialized;
PVOID SsHandle;
LIST_ENTRY InLoadOrderModuleList;
LIST_ENTRY InMemoryOrderModuleList;
LIST_ENTRY InInitializationOrderModuleList;
} PEB_LDR_DATA, *PPEB_LDR_DATA;

typedef struct _UNICODE_STRING
{
USHORT Length;
USHORT MaximumLength;
PWSTR Buffer;
} UNICODE_STRING, *PUNICODE_STRING;

typedef struct _LDR_MODULE {
LIST_ENTRY InLoadOrderModuleList;
LIST_ENTRY InMemoryOrderModuleList;
LIST_ENTRY InInitializationOrderModuleList;
PVOID BaseAddress;
PVOID EntryPoint;
ULONG SizeOfImage;
UNICODE_STRING FullDllName;
UNICODE_STRING BaseDllName;
ULONG Flags;
SHORT LoadCount;
SHORT TlsIndex;
LIST_ENTRY HashTableEntry;
ULONG TimeDateStamp;
} LDR_MODULE, *PLDR_MODULE;


typedef struct RTL_DRIVE_LETTER_CURDIR
{
USHORT Flags;
USHORT Length;
ULONG TimeStamp;
UNICODE_STRING DosPath;
} RTL_DRIVE_LETTER_CURDIR, *PRTL_DRIVE_LETTER_CURDIR;

typedef struct _RTL_USER_PROCESS_PARAMETERS
{
ULONG AllocationSize;
ULONG Size;
ULONG Flags;
ULONG DebugFlags;
HANDLE hConsole;
ULONG ProcessGroup;
HANDLE hStdInput;
HANDLE hStdOutput;
HANDLE hStdError;
UNICODE_STRING CurrentDirectoryName;
HANDLE CurrentDirectoryHandle;
UNICODE_STRING DllPath;
UNICODE_STRING ImagePathName;
UNICODE_STRING CommandLine;
PWSTR Environment;
ULONG dwX;
ULONG dwY;
ULONG dwXSize;
ULONG dwYSize;
ULONG dwXCountChars;
ULONG dwYCountChars;
ULONG dwFillAttribute;
ULONG dwFlags;
ULONG wShowWindow;
UNICODE_STRING WindowTitle;
UNICODE_STRING Desktop;
UNICODE_STRING ShellInfo;
UNICODE_STRING RuntimeInfo;
RTL_DRIVE_LETTER_CURDIR DLCurrentDirectory[0x20];
} RTL_USER_PROCESS_PARAMETERS, *PRTL_USER_PROCESS_PARAMETERS;

typedef VOID (_stdcall *PPEBLOCKROUTINE)(PVOID);

typedef struct _PEB_FREE_BLOCK
{
struct _PEB_FREE_BLOCK* Next;
ULONG Size;
} PEB_FREE_BLOCK, *PPEB_FREE_BLOCK;

struct PEB
{
BOOLEAN InheritedAddressSpace;
BOOLEAN ReadImageFileExecOptions;
BOOLEAN BeingDebugged;
BOOLEAN Spare;
HANDLE Mutant;
PVOID ImageBaseAddress;
PPEB_LDR_DATA LoaderData;
PRTL_USER_PROCESS_PARAMETERS ProcessParameters;
PVOID SubSystemData;
PVOID ProcessHeap;
PVOID FastPebLock;
PPEBLOCKROUTINE FastPebLockRoutine;
PPEBLOCKROUTINE FastPebUnlockRoutine;
ULONG EnvironmentUpdateCount;
PVOID *KernelCallbackTable;
PVOID EventLogSection;
PVOID EventLog;
PPEB_FREE_BLOCK FreeList;
ULONG TlsExpansionCounter;
PVOID TlsBitmap;
ULONG TlsBitmapBits[0x2];
PVOID ReadOnlySharedMemoryBase;
PVOID ReadOnlySharedMemoryHeap;
PVOID *ReadOnlyStaticServerData;
PVOID AnsiCodePageData;
PVOID OemCodePageData;
PVOID UnicodeCaseTableData;
ULONG NumberOfProcessors;
ULONG NtGlobalFlag;
BYTE Spare2[0x4];
LARGE_INTEGER CriticalSectionTimeout;
ULONG HeapSegmentReserve;
ULONG HeapSegmentCommit;
ULONG HeapDeCommitTotalFreeThreshold;
ULONG HeapDeCommitFreeBlockThreshold;
ULONG NumberOfHeaps;
ULONG MaximumNumberOfHeaps;
PVOID **ProcessHeaps;
PVOID GdiSharedHandleTable;
PVOID ProcessStarterHelper;
PVOID GdiDCAttributeList;
PVOID LoaderLock;
ULONG OSMajorVersion;
ULONG OSMinorVersion;
ULONG OSBuildNumber;
ULONG OSPlatformId;
ULONG ImageSubSystem;
ULONG ImageSubSystemMajorVersion;
ULONG ImageSubSystemMinorVersion;
ULONG GdiHandleBuffer[0x22];
ULONG PostProcessInitRoutine;
ULONG TlsExpansionBitmap;
BYTE TlsExpansionBitmapBits[0x80];
ULONG SessionId;
};

typedef struct _CLIENT_ID
{
HANDLE UniqueProcess;
HANDLE UniqueThread;
} CLIENT_ID, *PCLIENT_ID;

typedef struct _GDI_TEB_BATCH
{
ULONG Offset;
ULONG HDC;
ULONG Buffer[0x136];
} GDI_TEB_BATCH, *PGDI_TEB_BATCH;

struct TEB
{
NT_TIB Tib; /* 00h */
PVOID EnvironmentPointer; /* 1Ch */
CLIENT_ID Cid; /* 20h */
PVOID ActiveRpcInfo; /* 28h */
PVOID ThreadLocalStoragePointer; /* 2Ch */
PEB *Peb; /* 30h */
ULONG LastErrorValue; /* 34h */
ULONG CountOfOwnedCriticalSections; /* 38h */
PVOID CsrClientThread; /* 3Ch */
void* Win32ThreadInfo; /* 40h */
ULONG Win32ClientInfo[0x1F]; /* 44h */
PVOID WOW32Reserved; /* C0h */
LCID CurrentLocale; /* C4h */
ULONG FpSoftwareStatusRegister; /* C8h */
PVOID SystemReserved1[0x36]; /* CCh */
PVOID Spare1; /* 1A4h */
LONG ExceptionCode; /* 1A8h */
UCHAR SpareBytes1[0x28]; /* 1ACh */
PVOID SystemReserved2[0xA]; /* 1D4h */
GDI_TEB_BATCH GdiTebBatch; /* 1FCh */
ULONG gdiRgn; /* 6DCh */
ULONG gdiPen; /* 6E0h */
ULONG gdiBrush; /* 6E4h */
CLIENT_ID RealClientId; /* 6E8h */
PVOID GdiCachedProcessHandle; /* 6F0h */
ULONG GdiClientPID; /* 6F4h */
ULONG GdiClientTID; /* 6F8h */
PVOID GdiThreadLocaleInfo; /* 6FCh */
PVOID UserReserved[5]; /* 700h */
PVOID glDispatchTable[0x118]; /* 714h */
ULONG glReserved1[0x1A]; /* B74h */
PVOID glReserved2; /* BDCh */
PVOID glSectionInfo; /* BE0h */
PVOID glSection; /* BE4h */
PVOID glTable; /* BE8h */
PVOID glCurrentRC; /* BECh */
PVOID glContext; /* BF0h */
LONG LastStatusValue; /* BF4h */
UNICODE_STRING StaticUnicodeString; /* BF8h */
WCHAR StaticUnicodeBuffer[0x105]; /* C00h */
PVOID DeallocationStack; /* E0Ch */
PVOID TlsSlots[0x40]; /* E10h */
LIST_ENTRY TlsLinks; /* F10h */
PVOID Vdm; /* F18h */
PVOID ReservedForNtRpc; /* F1Ch */
PVOID DbgSsReserved[0x2]; /* F20h */
ULONG HardErrorDisabled; /* F28h */
PVOID Instrumentation[0x10]; /* F2Ch */
PVOID WinSockData; /* F6Ch */
ULONG GdiBatchCount; /* F70h */
USHORT Spare2; /* F74h */
BOOLEAN IsFiber; /* F76h */
UCHAR Spare3; /* F77h */
ULONG Spare4; /* F78h */
ULONG Spare5; /* F7Ch */
PVOID ReservedForOle; /* F80h */
ULONG WaitingOnLoaderLock; /* F84h */
ULONG Unknown[11]; /* F88h */
PVOID FlsSlots; /* FB4h */
PVOID WineDebugInfo; /* Needed for WINE DLL's */
};

#pragma pack(pop)

#pragma comment(linker,"/merge:.rdata=.data")
#pragma comment(linker,"/merge:.text=.data")



inline bool mystrcmp (const char * src,const char * dst)
{
int ret = 0 ;
while( ! (ret = *(unsigned char *)src - *(unsigned char *)dst) && *dst)
++src, ++dst;
return ret==0;
}

unsigned int GetFunctionByName(unsigned int ImageBase,const char*FuncName)
{
IMAGE_DOS_HEADER *pdoshdr=(IMAGE_DOS_HEADER *)ImageBase;
PIMAGE_NT_HEADERS32 pnthdr=(PIMAGE_NT_HEADERS32)(ImageBase+pdoshdr->e_lfanew);
if(pnthdr->Signature!=IMAGE_NT_SIGNATURE)
return 0;
PIMAGE_DATA_DIRECTORY pidd=&pnthdr->OptionalHeader.DataDirectory[0];
IMAGE_EXPORT_DIRECTORY *pied=(IMAGE_EXPORT_DIRECTORY *)(ImageBase+pidd->VirtualAddress);

LONG *pfuncnames=(LONG *)(ImageBase+pied->AddressOfNames);
for(unsigned int i=0;iNumberOfNames;i++)
{
PSTR pfunc=(PSTR)(ImageBase+pfuncnames);
if(mystrcmp(pfunc,FuncName))
{
WORD *EOT=(WORD *)(pied->AddressOfNameOrdinals+ImageBase);
LONG *EAT=(LONG *)(pied->AddressOfFunctions+ImageBase);
int index=EOT;
return (ImageBase+EAT[index]);
}
}
return 0;
}

typedef HMODULE (WINAPI *TLoadLibraryA)(LPCSTR lpFileName);
typedef BOOL (WINAPI *TFreeLibrary)(HMODULE hModule);
typedef void (WINAPI *TExitProcess)(UINT uExitCode);
typedef int (WINAPI *TMessageBox)(HWND hWnd,LPCSTR lpText,LPCSTR lpCaption,UINT uType);

extern "C" void WinMainCRTStartup()
{
unsigned int kernel32imagebase,user32imagebase;
char title[]="ddd&&*U( sunwang need beauty %^%&*";
char caption[]="hack";
char user32[]="user32";

TEB *pteb=NULL;
__asm mov eax,fs:[18h]
__asm mov pteb,eax

PEB *ppeb=pteb->Peb;
PPEB_LDR_DATA pldr=ppeb->LoaderData;
PLDR_MODULE pmodule=(PLDR_MODULE)pldr->InLoadOrderModuleList.Flink;
PLDR_MODULE pntdllmodule=(PLDR_MODULE)pmodule->InLoadOrderModuleList.Flink;
PLDR_MODULE pkernel32module=(PLDR_MODULE)pntdllmodule->InLoadOrderModuleList.Flink;
kernel32imagebase=(unsigned int)pkernel32module->BaseAddress;

TLoadLibraryA pLoadLibraryA=(TLoadLibraryA)GetFunctionByName(kernel32imagebase,"LoadLibraryA");
TFreeLibrary pFreeLibrary=(TFreeLibrary)GetFunctionByName(kernel32imagebase,"FreeLibrary");
TExitProcess pExitProcess=(TExitProcess)GetFunctionByName(kernel32imagebase,"ExitProcess");

user32imagebase=(unsigned int)pLoadLibraryA(user32);
TMessageBox pMessageBox=(TMessageBox)GetFunctionByName(user32imagebase,"MessageBoxA");
pMessageBox(NULL,title,caption,MB_OK);

pFreeLibrary((HMODULE)user32imagebase);
pExitProcess(0);
}

怎么不加点说明啊,看不懂啊,还有我在VC6下编译出现:
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/t1.exe : fatal error LNK1120: 1 unresolved externals