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### Prepackaging Applications Your Customers Can Use

Plesk comes with a number of free site applications that you can choose to provide to your customers or remove from the control panel script library (referred to as application vault). You can also obtain and install applications from third-party vendors through the application portal www.apsstandard.com.

You can set usage rules for any site application you add to the vault. For example, you can make a certain free application a commercial one that will be available to your customers only if you add it to their application pools under your conditions (for instance, after you received payment). When you change a free site application into a commercial one, it is withdrawn from the application pools of all clients. Now only you can add this application to your clients' application pools when needed. When you change a commercial application into a free one, it becomes free of charge for all clients.

All free of charge open source application packages are automatically added to application pools of all clients after installation of Plesk.

To view the information about the application packages you have in the vault:

1. Click the Server shortcut in the navigation pane.
2. Click the Application Vault icon in the Services group.

   .All application packages stored in the vault are listed in the Site Application Packages group.

   There are two icons next to the application name. The left icon denotes the following:

   - the application is shown in the list of applications available for installation.

   - the application is hidden from the list of applications available for installation.

   The icon in the right column denotes the site application usage rules you defined:

   - free of charge, automatically added to the application pools of all clients.

   - commercial application, can be added to a client application pool only by you under certain conditions.

   The Clients column shows the number of users using the site application.

3. To sort applications by category, select the category you need from the menu located next to the search box.

To add a new application to the application vault:

1. Click the Server shortcut in the navigation pane.
2. Click the Application Vault icon in the Services group.
3. Click Add New Application Package.
4. Click Browse and locate your application package in .zip format, then click OK.

To make a certain free application a commercial one and to add it to application pools of selected customers:

1. Click the Server shortcut in the navigation pane.
2. Click the Application Vault icon in the Services group.
3. Click the icon next to the application name.

   Now the application was removed from application pools of all clients, and you can manually add this application to the pools of selected clients, as described in the following steps.

4. Go to Clients > client name > Application Pool.
5. Click Add an Application Package to Client's Pool.
6. Select a check box corresponding to the application you need and click OK.

To upgrade an application package:

1. Go to Server > Application Vault > Add New Application Package.
2. Click Browse and locate the updated distribution package in .zip format, then click OK.
3. Go to Domains > domain name > Web Applications.
4. Click the corresponding shortcut in the U column.
5. Select the application version to which you want to upgrade, read the terms of the license agreement, and then click Upgrade.
6. Repeat the steps 3 to 6 for every domain/Web site hosted on your server, or inform your customers (site owners) who use this application that they can upgrade this application to the new version. To do so, they will need to click the Web Applications icon on their home pages in Plesk, and then click a corresponding shortcut in the U column.

To remove from the application vault the applications that you do not want to provide to your customers:

1. Click the Server shortcut in the navigation pane.
2. Click the Application Vault icon in the Services group.
3. Select a check box corresponding to the application you want to remove and click Remove Selected.
4. Confirm removal and click OK.

   The application distribution package was removed from the server application vault. Note that the applications already installed on users' sites are not removed.

If you need to install an application on a site, refer to the Installing Applications section.

Certain applications (for example, Counter-Strike Game Server) cannot be installed on individual sites, operating on the server level instead.

To view the list of available server-wide applications:

1. Go to Server > Application Vault > Server Applications.
2. Click Add New Server Application.

OR

1. Go to Server > Application Vault > Server Applications Repository.

To install a server-wide application:

1. Go to Server > Application Vault > Server Applications.
2. To specify which application you wish to install, select a radio button corresponding to the application of your choice.
3. Click Install.
4. Specify the installation preferences and other information that may be required by the application (the requirements may vary among applications). When finished, click Install.

To remove a server-wide application:

1. Go to Server > Application Vault > Server Applications.
2. Select the corresponding check box and click Remove Selected.
3. Confirm the removal and click OK.