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At the top right of the screen you can find two options to manage installed content in Exchange: Manage installed applications and Manage domain applications.
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Manage installed
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content
The Manage installed applications option leads to a screen where you can manage all Exchange content installed in your domain. This screen shows you key information to decide what to do with the content installed in your domain, such as the latest version available or the date it was installed.
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In this screen, you can not only Uninstall those you no longer need but also Install those you don't have yet in your domain.
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