Green Hills product licenses contain a "license serial number" that Green Hills Support and Licensing experts can use to help streamline licensing and maintenance contract lookup.
For MULTI 5.0.6 or later, this serial number is available from the "about" dialog in most MULTI components. You can access this dialog from the "Help" menu; for example, from the MULTI Launcher, you can choose the "Help" -> "About MULTI Launcher..." menu item.
In older versions of MULTI, the license serial number is not available. Our Support or Licensing experts will need to find your licensing and maintenance information based on your address. You can include your PO number in your problem request to help streamline the lookup.