How to Create an Update Package
You can use System Center Essentials 2007 to create an update package for an arbitrary software product. If you would like to deploy an update that does not come from Microsoft Update, for example, Essentials 2007 supports this task.
To create an update package
In the Essentials 2007 console, click Updates.
In the Actions list, click Create new Update.
Complete the New Update Wizard. You can add installation parameters during this process.
In the Approve Groups for Installation dialog box, select one or more computer groups in which you would like this update to be deployed. You can also schedule update installation for later using the Set Deadlines button.