32-bit Windows: You must copy the libeay32.dll and ssleay32.dll 32-bit files to your Windows system folder (System32 folder).
    64-bit Windows: You must copy the libeay32.dll and ssleay32.dll 64-bit files to your Windows system folder for 64-bit files (System32) and the libeay32.dll and ssleay32.dll 32-bit files to your Windows 32-bit files folder (SysWOW64 folder).

    So when working with a 64-bit Windows, remember:

        System32 folder is for 64-bit files only.
        SysWOW64 folder is for 32-bit files only.