C / C++ / MFC

VS_VERSIONINFO      *pVerInfo;
    LPBYTE              pOffsetBytes;
    VS_FIXEDFILEINFO    *pFixedInfo;
    LPCTSTR             lpszFile = _T("C:\\a.exe");
    DWORD               dwHandle,
                        dwSize,
                        dwResult = 0;

    
   dwSize = GetFileVersionInfoSize(lpszFile, &dwHandle);
    if (0 < dwSize)
    {
        LPBYTE lpBuffer = new BYTE[dwSize];
        
        if (GetFileVersionInfo(lpszFile, 0, dwSize, lpBuffer) != FALSE)
        {
	#define roundoffs(a,b,r) (((BYTE *) (b) - (BYTE *) (a) + ((r) - 1)) & ~((r) - 1))
            #define roundpos(a,b,r) (((BYTE *) (a)) + roundoffs(a,b,r))
                       
            pVerInfo = (VS_VERSIONINFO *) lpBuffer;
            pOffsetBytes = (BYTE *) &pVerInfo->szKey[_tcslen(pVerInfo->szKey) + 1];
            pFixedInfo = (VS_FIXEDFILEINFO *) roundpos(pVerInfo, pOffsetBytes, 4);

            pFixedInfo->dwFileVersionMS    = 0x11112222;
            pFixedInfo->dwFileVersionLS    = 0x33334444;
            pFixedInfo->dwProductVersionMS = 0x00030010;
	    pFixedInfo->dwProductVersionLS = 0x00000031;

	    HANDLE hResource = BeginUpdateResource(lpszFile, FALSE);
            if (NULL != hResource)
            {
                UINT uTemp;
		      
         if (VerQueryValue(lpBuffer, _T("\\StringFileInfo\\ProductName"),(LPVOID *) &lpTranslate, &uTemp) != FALSE)
         {
              if (UpdateResource(hResource, RT_VERSION, MAKEINTRESOURCE(VS_VERSION_INFO), lpTranslate->wLanguage, lpBuffer, dwSize) != FALSE)
                    {
                        if (EndUpdateResource(hResource, FALSE) == FALSE)
                            dwResult = GetLastError();
                    }
                    else
                        dwResult = GetLastError();
                }
            }
            else
                dwResult = GetLastError();
        }
        else
            dwResult = GetLastError();

        delete [] lpBuffer;
    }
    else
        dwResult = GetLastError();

    if (0 != dwResult)
		wprintf(_T("Operation was not successful.  Result = %lu\n"), dwResult);
	else
		wprintf(_T("Operation was successful."));