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.NET interview questions and answers: - What is the use of Click Once?

Consider a situation where you have a windows application and it’s deployed worldwide in lot of client’s machine. Now after sometime you come out with a new version and you would like to update the client application with this new version. For now assume that your end users are not technical, so providing them setup is out of question. That’s where “ClickOnce” technology is useful. It is a technology for deploying windows application. When any new version comes in , you can upload this new version on a  central server  and “ClickOnce” will pull the portion that have changed and update the application accordingly.

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