Third-party software component
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In computer programming, a third-party software component is a reusable software component developed to be either freely distributed or sold by an entity other than the original vendor of the development platform. The third-party software component market thrives because many programmers believe that component-oriented development improves the efficiency and the quality of developing custom applications. Common third-party software includes macros, bots, and software/scripts to be run as add-ons for popular developing software.