= Installing OpenSSL Library =
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If TLS support is wanted, then OpenSSL SDK must be installed in the development host.

To install OpenSSL SDK from the Win32 binary distribution:

   1. Install OpenSSL SDK to any folder (e.g. C:\OpenSSL)
   2. Add OpenSSL DLL location to the system PATH.
   3. Add OpenSSL include path to Visual Studio includes search directory. Make sure that OpenSSL header files can be accessed from the program with #include <openssl/ssl.h> construct.
   4. Add OpenSSL library path to Visual Studio library search directory. Make sure the following libraries are accessible:
          * For Debug build: libeay32MTd and ssleay32MTd.
          * For Release build: libeay32MT and ssleay32MT.

Then to enable TLS transport support in PJSIP, please check [wiki:TLS configuring PJSIP with TLS].