Installation and Upgrade > Installation and Configuration Guide > Using the PTC Solution Installer > Installing Windchill Solutions > Launching the PTC Solution Installer > Identifying the Installation Instance
  
Identifying the Installation Instance
Enter a name to identify this installation instance. This name identifies the installation to be used when performing a maintenance update or when adding a component to an existing installation, in situations where multiple installation instances could be on the same machine. Typically this occurs in a test environment.