# 2.1.2.Install mosquitto on Windows 7

* 1.Go to <http://mosquitto.org/download/> and download installation file for Windows (download Win32 OpenSSL v1.0.2j Light) and install it.
* 2.You also need to install 2 dependencies:
  * 1.pThreads:&#x20;
    * ftp\://sources.redhat.com/pub/pthreads-win32/dll-latest/dll/x86/
  * 2.OpenSSL:&#x20;
    * <http://slproweb.com/products/Win32OpenSSL.html>
* 3.Copy the folling files to the folder where Mosquitto is installed:
  * 1.Required DLLs:&#x20;
    * libeay32.dll ssleay32.dll (Look for these files in the OpenSSL-Win32 or OpenSSL-Win32\Bin folder)
  * 2.Required DLLs:&#x20;
    * pthreadVC2.dll
* 4.Reinstall Mosquitto
* 5.Reboot
* Reference:
  * 1.<https://sivatechworld.wordpress.com/2015/06/11/step-by-step-installing-and-configuring-mosquitto-with-windows-7/>
  * 2.<https://dotblogs.com.tw/justacoder/2016/06/01/mqttfirstmeet>
  * 3.<http://guang.logdown.com/posts/235550-mqtt-mosquitto-teaching>