Hi, this code will help to get file size in C++. int GetszFile (char *szFileName) { DWORD dwSize; HANDLE hFile; hFile = CreateFile (szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_READONLY, NULL); dwSize = GetFileSize (hFile, NULL); CloseHandle(hFile); return dwSize; }