Describes the state of an installation package.
|Absent||The package is not installed.|
|Cached||This value is no longer used. See the DetectPackageCompleteEventArgs.Cached value instead.|
|Obsolete||The package is not on the machine (except possibly MspPackage) and should not be installed.|
|Present||The package is installed.|
|Superseded||The package is on the machine but not active, so only uninstall operations are allowed.|