Definition: The word "5.0.89" is a technical term used in operating systems to denote a software version that supports multiple operating systems, including Windows XP. It describes a version number from 4.0 upwards which allows support for at least Windows 2003 and Windows Vista, with the exception of Windows 2008 and Windows Server 2008 R2. This means it is compatible with all versions of Windows operating systems in its entirety.