A plug-in package is a ZIP archive file that contains all of the plug-in modules in your extension solution along with a package manifest.

The package manifest describes deployment information for each plug-in module using XML metadata. The vSphere Web Client Extension Manager uses this metadata to install and deploy each plug-in module in the plug-in package.

To create a plug-in package, you must create a ZIP archive file with the following structure:

■	At the root level, add a plugin-package.xml file to the root folder.
■	At the root level, add a plugins folder.
■	Inside the plugins folder, add one or more WAR files containing the plug-in UI modules.
■	Inside the plugins folder, add zero or more JAR files, one for each Java service component created for your plug-in.
■	Inside the plugins folder, add zero or more JAR files, one for each third party Java library used by your plug-in.

You can use any text or XML editor to create the plugin-package.xml file.