embed DLL in MFC C++ EXE?

Is it possible to embed an external CLI/C++ DLL into a MFC EXE as a embedded resource or something like that? My application currently connects to DLL sitting right beside it that has some basic functions like connect to database, pull information from DB, etc..

I use LoadLibrary to use the DLL functions. Then I secure my EXE with themida and pack the EXE and DLL together. The problem is though to pack the DLL and EXE I have to disable file patching in themida which is a very strong feature. I have to disable it because when I pack my EXE it needs to modify the file a bit, and then themida thinks it has been cracked or something and does not allow the application to work.

So is there a way to embed this DLL into my EXE? The DLL is not compatible with themida sadly which is why it is a separate file.

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2 Answers

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1) Add a Resource Script file in the executable project.

IDR_DLL_BIN        BINARY  MOVEABLE PURE   “..\\debug\\myextern.dll”

2) Compile RC file to RES file using the Resource Compiler:

rc.exe /fo ”Release/mydll.res” “.\mydll.rc”

If you are using Visual Studio, it will build the RES file and will also bind it with executable.

3) Find and load the resource from the executable:

bool ExtractResource(const HINSTANCE hInstance, WORD resourceID, LPCTSTR szFilename){  bool bSuccess = false;   try  {      // Find and load the resource      HRSRC hResource = FindResource(hInstance, MAKEINTRESOURCE(resourceID), _T(“BINARY”));      HGLOBAL hFileResource = LoadResource(hInstance, hResource);      // Open and map this to a disk file      LPVOID lpFile = LockResource(hFileResource);      DWORD dwSize = SizeofResource(hInstance, hResource);                  // Open the file and filemap      HANDLE hFile = CreateFile(szFilename, GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);      HANDLE hFileMap = CreateFileMapping(hFile, NULL, PAGE_READWRITE, 0, dwSize, NULL);                  LPVOID lpAddress = MapViewOfFile(hFileMap, FILE_MAP_WRITE, 0, 0, 0);                  // Write the file      CopyMemory(lpAddress, lpFile, dwSize);                  // Un-map the file and close the handles      UnmapViewOfFile(lpAddress);      CloseHandle(hFileMap);      CloseHandle(hFile);   }   catch(…)   {        // Whatever   }    return bSuccess; }

将所用到的dll和exe打包成一个exe，比如enigma virtual box之类

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