多个DLL合并成一个DLL，把DLL合并到Exe中的解决方案
.NET 托管DLL合并 实现
下载 http://download.microsoft.com/download/1/3/4/1347C99E-9DFB-4252-8F6D-A3129A069F79/ILMerge.msi
2:) 开始-》运行 -》 "cmd" -> "cd C:\Program Files\Microsoft\ILMerge"
3:)
3.1、合并file1.dll、file2.dll到destination.dll
ILmerge /ndebug /target:dll /out:C:\destination.dll /log C:\f1.dll C:\f2.dll
注：
1:) 其中 "/out:C:\destination.dll" 为合并后的 dll目录及名称
2:) "C:\f1.dll C:\f2.dll " 为要合并的名称
3.2、合并file1.dll、file2.dll以及myApp.exe到newApp.exe
ILmerge /ndebug /target:winexe /out:C:\newApp.exe /log C:\myapp.exe C:\f1.dll C:\f2.dll
注：
1:) 合并为exe时，myapp.exe 必须写在f2.dll、f2.dll 前面
C++实现
转。。。。
Win32 程序调用 DLL 的机制
Win32 EXE 在调用一个外部 DLL 中的函数时，首先要调用 LoadLibary 函数来载入此 DLL 到程序的进程地址空间。 如果 LoadLibary 载入此 DLL 成功，将返回一个该 DLL 的句柄。 这个句柄实际上就是该 DLL 在内存中的起始地址。 在载入 DLL 成功后，还必须调用 GetProcAddress 函数来获取要调用的函数的地址。然后再根据该地址来调用这个函数。
根据上述原理，我们可以把一个 DLL 作为资源文件放到 EXE 文件中，在程序运行时，分配一块内存，然后将此资源复制到该分配的内存中，并根据该内存地址计算得到相关的导出函数地址，然后，当我们需要调用某一函数时，可以用该函数在内存中的地址来调用它。
程序实现。
首先，把要合并的 DLL 作为资源加入到项目的资源文件中，然后在程序运行时，从资源中载入该资源，以得到该 DLL 在内存中的位置：
LPVOID sRawDll; // 资源文件在内存中的地址 HRSRC hRes; HMODULE hLibrary; HGLOBAL hResourceLoaded; char lib_name[MAX_PATH]; GetModuleFileName(hInstance, lib_name, MAX_PATH ); // 得到运行程序的名字 hLibrary = LoadLibrary(lib_name); // 就象载入一个 DLL 一样载入运行程序到内存中 if (NULL != hLibrary) { // 得到指定的资源文件在内存中的位置 hRes = FindResource(hLibrary, MAKEINTRESOURCE(IDR_DATA1), RT_RCDATA); if (NULL != hRes) { // 将资源文件载入内存 hResourceLoaded = LoadResource(hLibrary, hRes); if (NULL != hResourceLoaded) { // 得到资源文件大小 SizeofResource(hLibrary, hRes); // 锁定资源以得到它在内存中的地址 sRawDll = (LPVOID)LockResource(hResourceLoaded); } } else return 1 ; FreeLibrary(hLibrary); } else return 1 ; PIMAGE_DOS_HEADER dosHeader; PIMAGE_NT_HEADERS pNTHeader; PIMAGE_SECTION_HEADER section; PIMAGE_IMPORT_DESCRIPTOR pImportDesc; PIMAGE_IMPORT_BY_NAME pOrdinalName; PIMAGE_BASE_RELOCATION baseReloc; PDWORD lpLink; unsigned char Protection[ 4096 ]; HINSTANCE hDll; WORD i; DWORD ImagePages,fOldProtect,j,MaxLen,HdrLen,Addr1,Addr2,Pg,Pg1,Pg2; char * sDllName; if (NULL == lpRawDll) return 1 ; dosHeader = (PIMAGE_DOS_HEADER)lpRawDll; // Is this the MZ header? if ((TRUE == IsBadReadPtr(dosHeader, sizeof (IMAGE_DOS_HEADER))) || (IMAGE_DOS_SIGNATURE != dosHeader -> e_magic)) return 2 ; // Get the PE header. pNTHeader = MakePtr(PIMAGE_NT_HEADERS,dosHeader,dosHeader -> e_lfanew); // Is this a real PE image? if ((TRUE == IsBadReadPtr(pNTHeader, sizeof ( IMAGE_NT_HEADERS))) || ( IMAGE_NT_SIGNATURE != pNTHeader -> Signature)) return 3 ; if (( pNTHeader -> FileHeader.SizeOfOptionalHeader != sizeof (pNTHeader -> OptionalHeader)) || (pNTHeader -> OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC)) return 4 ; if (pNTHeader -> FileHeader.NumberOfSections < 1 ) return 5 ; section = IMAGE_FIRST_SECTION( pNTHeader ); int HeaderSize = sizeof (IMAGE_SECTION_HEADER); // 节头长度 HdrLen = (DWORD)section - (DWORD)dosHeader + HeaderSize * pNTHeader -> FileHeader.NumberOfSections; // 找出最大的节的长度,此节一般是代码所在的节(.text 节) MaxLen = HdrLen; int ii = 0 ; for (i = 0 ;i < (DWORD)pNTHeader -> FileHeader.NumberOfSections;i ++ ) // find MaxLen { if (MaxLen < section[i].VirtualAddress + section[i].SizeOfRawData) { MaxLen = section[i].VirtualAddress + section[i].SizeOfRawData; } if (strcmp(( const char * )section[i].Name, " .rsrc " ) == 0 ) ii = i; } GetSystemInfo( & sSysInfo); ImagePages = MaxLen / sSysInfo.dwPageSize; if (MaxLen % sSysInfo.dwPageSize) ImagePages ++ ; // 分配所需的内存 DWORD NeededMemory = ImagePages * sSysInfo.dwPageSize; lpImageDll = VirtualAlloc(NULL, NeededMemory, MEM_COMMIT, PAGE_EXECUTE_READWRITE); if (lpImageDll == NULL) return 6 ; // 分配内存失败 MoveMemory( lpImageDll, lpRawDll, HdrLen ); // 复制节头 DWORD OrgAddr = 0 ; DWORD NewAddr = 0 ; DWORD Size = 0 ; // 复制 .text 节数据 for (i = 0 ;i < pNTHeader -> FileHeader.NumberOfSections;i ++ ) { OrgAddr = (DWORD)lpImageDll + (DWORD)section[i].VirtualAddress; NewAddr = (DWORD)lpRawDll + (DWORD)section[i].PointerToRawData; Size = (DWORD)section[i].SizeOfRawData; MoveMemory(( void * )OrgAddr, ( void * )NewAddr, Size ); } // 把指针指向新的 DLL 映像 dosHeader = (PIMAGE_DOS_HEADER) lpImageDll; // Switch to new image pNTHeader = (PIMAGE_NT_HEADERS) ((DWORD)dosHeader + dosHeader -> e_lfanew); section = (PIMAGE_SECTION_HEADER) ((DWORD)pNTHeader + sizeof (IMAGE_NT_HEADERS)); pImageBase = (PBYTE)dosHeader; if ((ii != 0 ) && (IsNT() == TRUE)) { section[ii].VirtualAddress = section[ii].VirtualAddress + (DWORD)lpRawDll; section[ii].PointerToRawData = section[ii].PointerToRawData + (DWORD)lpRawDll; } DWORD importsStartRVA; // Look up where the imports section is (normally in the .idata section) // but not necessarily so. Therefore, grab the RVA from the data dir. importsStartRVA = GetImgDirEntryRVA(pNTHeader,IMAGE_DIRECTORY_ENTRY_IMPORT); if ( ! importsStartRVA ) { VirtualFree(dosHeader, 0 , MEM_RELEASE); return 7 ; } pImportDesc = (PIMAGE_IMPORT_DESCRIPTOR) pNTHeader -> OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress; if (pImportDesc != 0 ) pImportDesc = (PIMAGE_IMPORT_DESCRIPTOR) ((DWORD)pImportDesc + (DWORD)dosHeader); else { VirtualFree(dosHeader, 0 , MEM_RELEASE); return 8 ; } while ( 1 ) // 处理各入口表中的 DLL { // 检查是否遇到了空的 IMAGE_IMPORT_DESCRIPTOR if ((pImportDesc -> TimeDateStamp == 0 ) && (pImportDesc -> Name == 0 )) break ; // 从磁盘载入必须的 Dll, // 注意,载入的 DLL 是合并的 DLL 的入口表中的 DLL, // 不是合并到 EXE 中的 DLL sDllName = ( char * ) (pImportDesc -> Name + (DWORD)pImageBase); hDll = GetModuleHandle(sDllName); if (hDll == 0 ) hDll = LoadLibrary(sDllName); if (hDll == 0 ) { MessageBox(NULL, " Can''t find required Dll " , " Error in LoadPbDllFromMemory() " , 0 ); VirtualFree(dosHeader, 0 , MEM_RELEASE); return 9 ; } DWORD * lpFuncNameRef = (DWORD * ) (pImportDesc -> OriginalFirstThunk + (DWORD)dosHeader); DWORD * lpFuncAddr = (DWORD * ) (pImportDesc -> FirstThunk + (DWORD)dosHeader); while ( * lpFuncNameRef != 0 ) { pOrdinalName = (PIMAGE_IMPORT_BY_NAME) ( * lpFuncNameRef + (DWORD)dosHeader); DWORD pIMAGE_ORDINAL_FLAG = 0x80000000 ; if ( * lpFuncNameRef & pIMAGE_ORDINAL_FLAG) * lpFuncAddr = (DWORD) GetProcAddress(hDll, ( const char * )( * lpFuncNameRef & 0xFFFF )); else * lpFuncAddr = (DWORD) GetProcAddress(hDll, ( const char * )pOrdinalName -> Name); if (lpFuncAddr == 0 ) { VirtualFree(dosHeader, 0 , MEM_RELEASE); return 10 ; // Can''t GetProcAddress } lpFuncAddr ++ ; lpFuncNameRef ++ ; } pImportDesc ++ ; } DWORD TpOffset; baseReloc = (PIMAGE_BASE_RELOCATION)((DWORD)pNTHeader -> OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress); if (baseReloc != 0 ) { baseReloc = (PIMAGE_BASE_RELOCATION) ((DWORD)baseReloc + (DWORD)dosHeader); while (baseReloc -> VirtualAddress != 0 ) { PWORD lpTypeOffset = (PWORD) ((DWORD)baseReloc + sizeof (IMAGE_BASE_RELOCATION)); while (lpTypeOffset < (PWORD)((DWORD)baseReloc + (DWORD)baseReloc -> SizeOfBlock)) { TpOffset = * lpTypeOffset & 0xF000 ; if (TpOffset == 0x3000 ) { lpLink = (PDWORD) ((DWORD)dosHeader + baseReloc -> VirtualAddress + ( * lpTypeOffset & 0xFFF )); * lpLink = (DWORD)dosHeader + ( * lpLink) - pNTHeader -> OptionalHeader.ImageBase; } else { if (TpOffset != 0 ) { VirtualFree(dosHeader, 0 , MEM_RELEASE); return 10 ; } } lpTypeOffset ++ ; } baseReloc = (PIMAGE_BASE_RELOCATION)((DWORD)baseReloc + (DWORD)baseReloc -> SizeOfBlock); } } // 取得原始的内存状态 memset(Protection, 0 , 4096 ); for (i = 0 ;i <= pNTHeader -> FileHeader.NumberOfSections;i ++ ) { if (i == pNTHeader -> FileHeader.NumberOfSections) { Addr1 = 0 ; Addr2 = HdrLen; j = 0x60000000 ; } else { Addr1 = section[i].VirtualAddress; Addr2 = section[i].SizeOfRawData; j = section[i].Characteristics; } Addr2 += Addr1 - 1 ; Pg1 = Addr1 / sSysInfo.dwPageSize; Pg2 = Addr2 / sSysInfo.dwPageSize; for (Pg = Pg1 ;Pg <= Pg2;Pg ++ ) { if (j & 0x20000000 ) Protection[Pg] |= 1 ; // Execute if (j & 0x40000000 ) Protection[Pg] |= 2 ; // Read if (j & 0x80000000 ) Protection[Pg] |= 4 ; // Write } } // 恢复原始的内存状态 Addr1 = (DWORD)dosHeader; for (Pg = 0 ;Pg <= ImagePages;Pg ++ ) fOldProtect = PAGE_READONLY; break ; fOldProtect = PAGE_EXECUTE_READ; break ; fOldProtect = PAGE_READWRITE; break ; // Ignore strange combinations fOldProtect = PAGE_EXECUTE_READWRITE; break ; } if (fOldProtect != PAGE_EXECUTE_READWRITE) { if (VirtualProtect(( void * )Addr1, sSysInfo.dwPageSize, fOldProtect, & fOldProtect) == 0 ) { VirtualFree(dosHeader, 0 , MEM_RELEASE); return 11 ; } } Addr1 += sSysInfo.dwPageSize; } EntryPoint = (LPENTRYPOINT) ((DWORD)pNTHeader -> OptionalHeader.AddressOfEntryPoint + (DWORD)dosHeader); LPVOID lpReserved = 0 ; EntryPoint((HINSTANCE)dosHeader, DLL_PROCESS_ATTACH, lpReserved); lpImageDll2 = lpImageDll; return 0 ; PIMAGE_EXPORT_DIRECTORY pExportDir; PWORD lpNameOrdinals; LPDWORD lpFunctions; DWORD * lpName; char * lpExpFuncName; DWORD i; DWORD j; char * lpFuncName; if (dosHeader -> e_magic != IMAGE_DOS_SIGNATURE) return 0 ; pNTHeader = (PIMAGE_NT_HEADERS)((DWORD)dosHeader + dosHeader -> e_lfanew); if (pNTHeader -> Signature != IMAGE_NT_SIGNATURE) return 0 ; if ((pNTHeader -> FileHeader.SizeOfOptionalHeader != sizeof (pNTHeader -> OptionalHeader)) || (pNTHeader -> OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC)) return 0 ; DWORD exportsStartRVA, exportsEndRVA; pImageBase = (PBYTE)dosHeader; // Make pointers to 32 and 64 bit versions of the header. pNTHeader = MakePtr( PIMAGE_NT_HEADERS, dosHeader,dosHeader -> e_lfanew ); exportsStartRVA = GetImgDirEntryRVA(pNTHeader,IMAGE_DIRECTORY_ENTRY_EXPORT); exportsEndRVA = exportsStartRVA + GetImgDirEntrySize(pNTHeader, IMAGE_DIRECTORY_ENTRY_EXPORT); // Get the IMAGE_SECTION_HEADER that contains the exports. This is // usually the .edata section, but doesn''t have to be. PIMAGE_SECTION_HEADER header; header = GetEnclosingSectionHeader( exportsStartRVA, pNTHeader ); if ( ! header ) return 0 ; INT delta; delta = (INT)(header -> VirtualAddress - header -> PointerToRawData); pExportDir = (PIMAGE_EXPORT_DIRECTORY)GetPtrFromRVA(exportsStartRVA, pNTHeader, pImageBase); pExportDir = (PIMAGE_EXPORT_DIRECTORY) (pNTHeader -> OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress); if (pExportDir == 0 ) { MessageBox(NULL, " Error in GetProcAddressDirectly() " , 0 , 0 ); return 0 ; } pExportDir = (PIMAGE_EXPORT_DIRECTORY) ((DWORD)pExportDir + (DWORD)dosHeader); lpNameOrdinals = (PWORD)((DWORD)pExportDir -> AddressOfNameOrdinals + (DWORD)dosHeader); lpName = (LPDWORD) (pExportDir -> AddressOfNames + (DWORD)dosHeader); lpFunctions = (LPDWORD) (pExportDir -> AddressOfFunctions + (DWORD)dosHeader); lpFuncName = FuncName; if (HIWORD(lpFuncName) != 0 ) { for ( i = 0 ;i <= pExportDir -> NumberOfFunctions - 1 ;i ++ ) { DWORD entryPointRVA = * lpFunctions; // Skip over gaps in exported function if ( entryPointRVA == 0 ) continue ; for ( j = 0 ;j <= pExportDir -> NumberOfNames - 1 ;j ++ ) { if ( lpNameOrdinals[j] == i) { lpExpFuncName = ( char * ) (lpName[j] + (DWORD)dosHeader); if (strcmp(( char * )lpExpFuncName,( char * )FuncName) == 0 ) return (DWORD) (lpFunctions[i] + (DWORD)dosHeader); } } } } else { for (i = 0 ;i <= pExportDir -> NumberOfFunctions - 1 ;i ++ ) { if (lpFuncName == ( char * )(pExportDir -> Base + i)) { if (lpFunctions[i]) return (unsigned long ) (lpFunctions[i] + dosHeader); } } } return 0 ; pNTHeader = (PIMAGE_NT_HEADERS)((DWORD)dosHeader + (DWORD)dosHeader -> e_lfanew); EntryPoint = (LPENTRYPOINT)(pNTHeader -> OptionalHeader.AddressOfEntryPoint + (DWORD)dosHeader); EntryPoint((HINSTANCE)dosHeader, DLL_PROCESS_DETACH, 0 ); return VirtualFree(dosHeader, 0 , MEM_RELEASE); }
DPGetDefaultPrinter 取得默认的打印机名 DPSetDefaultPrinter 设置默认的打印机 getserial 取得硬盘的出厂序列号 getmetric 取得显示分辩率 PrintStringDirect 直接向打印机发送一个串 vfpbeep 让 PC 喇叭发声 getcpuid 取得 CPU ID getbios 取得主板 BIOS ID
在示例代码中，只调用了其中一个函数 getbios 来获取主板 BIOS ID， 这里说明一下，该函数实际上好象只能检测 AWARD 主板的 BIOS， 也就是说它是读取的是系统内存 0x000fex71 处的值。因为其它牌子的主板 BIOS 的位置稍有不同，但在程序中没有进行这方面的处理，所以在读其它牌子的主板 BIOS 时可能会有些问题(读出的内容可能不正确)。关于此 DLL 的内容和实现，也许我会在另一篇文章中论及。
局限
在我进行测试时，发现对于有些含有资源的 DLL，在 9x 平台下可能会有问题。
题外话
另外，其它一些本文未提及的非主要的函数，请自行参见源代码中的注释。
再，本文涉及 PE 文件格式方面的知识，它们已经超出了本文的范围，具体信息可参见 MSDM 中的:
特别感谢卢春明（Aming）在我编写本文时所作的一些技术方面的建议和指导