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A helper application is an external viewer program launched to display content retrieved using a web browser. Some common examples include Windows Media Player and QuickTime Player for playing streaming content.

Unlike a plugin(whose full code is included into browser code), a small line is added to the browser code to tell it to open a certain helper application in case it encounters a certain file format.

[edit] See also

• ActiveX control
• Object Linking and Embedding
• Overlay (operating system)
• Plugin
• shell script
• Video player (software)
• XCMD

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