-* This listener is registered with the PackageManager::AddPackageInstallationEventListener() method and unregistered with the PackageManager::RemovePackageInstallationEventListener() method.
-* Generally, this listener is used in system applications such as application service that utilizes packages' (un)installation information in a system.
+* This listener is registered using the PackageManager::AddPackageInstallationEventListener() method and unregistered using the PackageManager::RemovePackageInstallationEventListener() method.
+* Generally, this listener is used in system applications such as an application service that utilizes a package's (un)installation information that is present in the system.