> ## Documentation Index > Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt > Use this file to discover all available pages before exploring further. # XPackage > XPackage # XPackage Reference material for XPackage APIs. ## Functions | Function | Description | | ----------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- | | [XPackageChangeChunkInstallOrder](/reference/system/xpackage/functions/xpackagechangechunkinstallorder) | Sets the selected chunks to install first. | | [XPackageChunkAvailabilityCallback](/reference/system/xpackage/functions/xpackagechunkavailabilitycallback) | A user-defined callback used by [XPackageEnumerateChunkAvailability](/reference/system/xpackage/functions/xpackageenumeratechunkavailability). | | [XPackageCloseInstallationMonitorHandle](/reference/system/xpackage/functions/xpackagecloseinstallationmonitorhandle) | Closes a specified installation monitor. | | [XPackageCloseMountHandle](/reference/system/xpackage/functions/xpackageclosemounthandle) | Closes the specified mount handle. | | [XPackageCreateInstallationMonitor](/reference/system/xpackage/functions/xpackagecreateinstallationmonitor) | Creates a monitor of the state of an installation. | | [XPackageEnumerateChunkAvailability](/reference/system/xpackage/functions/xpackageenumeratechunkavailability) | Examines the installation package and enumerates the availability of all chunks that match the specified selectors. | | [XPackageEnumerateFeatures](/reference/system/xpackage/functions/xpackageenumeratefeatures) | Enumerates features defined in the package's layout file. | | [XPackageEnumeratePackages](/reference/system/xpackage/functions/xpackageenumeratepackages) | Finds installed or installing packages related to the calling process. | | [XPackageEnumerationCallback](/reference/system/xpackage/functions/xpackageenumerationcallback) | A callback used by [XPackageEnumeratePackages](/reference/system/xpackage/functions/xpackageenumeratepackages). | | [XPackageEstimateDownloadSize](/reference/system/xpackage/functions/xpackageestimatedownloadsize) | Computes the download size of the chunks that match the specified installation selectors. | | [XPackageFeatureEnumerationCallback](/reference/system/xpackage/functions/xpackagefeatureenumerationcallback) | The callback used by XPackageEnumerateFeatures to enumerate each feature. | | [XPackageFindChunkAvailability](/reference/system/xpackage/functions/xpackagefindchunkavailability) | Returns the minimum availability for the collection of chunks that match the specified selectors. | | [XPackageGetCurrentProcessPackageIdentifier](/reference/system/xpackage/functions/xpackagegetcurrentprocesspackageidentifier) | Returns an installation identity string that identifies the installation for this process. | | [XPackageGetInstallationProgress](/reference/system/xpackage/functions/xpackagegetinstallationprogress) | Returns the current progress of an installation. | | [XPackageGetMountPath](/reference/system/xpackage/functions/xpackagegetmountpath) | Gets the path to a mounted installation. | | [XPackageGetMountPathSize](/reference/system/xpackage/functions/xpackagegetmountpathsize) | Gets the size required for an array to hold a mount path returned by [XPackageGetMountPath](/reference/system/xpackage/functions/xpackagegetmountpath). | | [XPackageGetUserLocale](/reference/system/xpackage/functions/xpackagegetuserlocale) | Gets the current user locale. | | [XPackageGetWriteStats](/reference/system/xpackage/functions/xpackagegetwritestats) | Gets the output write statistics (writeStats). | | [XPackageInstallationProgressCallback](/reference/system/xpackage/functions/xpackageinstallationprogresscallback) | A callback used by [XPackageRegisterInstallationProgressChanged](/reference/system/xpackage/functions/xpackageregisterinstallationprogresschanged). | | [XPackageInstallChunks](/reference/system/xpackage/functions/xpackageinstallchunks) | Starts the installation of chunks. | | [XPackageInstallChunksAsync](/reference/system/xpackage/functions/xpackageinstallchunksasync) | Starts installation of chunks. | | [XPackageInstallChunksResult](/reference/system/xpackage/functions/xpackageinstallchunksresult) | Retrieves the result of a call to [XPackageInstallChunksAsync](/reference/system/xpackage/functions/xpackageinstallchunksasync). | | [XPackageInstalledCallback](/reference/system/xpackage/functions/xpackageinstalledcallback) | A user-defined callback used by the XPackageRegisterPackageInstalled function. | | [XPackageIsPackagedProcess](/reference/system/xpackage/functions/xpackageispackagedprocess) | Returns a Boolean that indicates whether the current process has an installation identity. | | [XPackageMount](/reference/system/xpackage/functions/xpackagemount) | This function is now deprecated. Use XPackageMountWithUiAsync instead. | | [XPackageMountWithUiAsync](/reference/system/xpackage/functions/xpackagemountwithuiasync) | Asynchronously mounts the installation of specified content, and returns a mount handle to it. | | [XPackageMountWithUiResult](/reference/system/xpackage/functions/xpackagemountwithuiresult) | Gets the results of a call to XPackageMountWithUIAsync. | | [XPackageRegisterInstallationProgressChanged](/reference/system/xpackage/functions/xpackageregisterinstallationprogresschanged) | Registers a callback to be called when installation progress changes. | | [XPackageRegisterPackageInstalled](/reference/system/xpackage/functions/xpackageregisterpackageinstalled) | Registers a callback to be called when an installation is completed. | | [XPackageUninstallPackage](/reference/system/xpackage/functions/xpackageuninstallpackage) | Uninstalls a given package. | | [XPackageUninstallChunks](/reference/system/xpackage/functions/xpackageuninstallchunks) | Uninstalls chunks that match the specified selectors. | | [XPackageUninstallUWPInstance](/reference/system/xpackage/functions/xpackageuninstalluwpinstance) | Uninstalls a Universal Windows Platform (UWP) instance of a particular package for the current user if one is currently installed. | | [XPackageUnregisterInstallationProgressChanged](/reference/system/xpackage/functions/xpackageunregisterinstallationprogresschanged) | Unregisters a previously registered install progress changed callback. | | [XPackageUnregisterPackageInstalled](/reference/system/xpackage/functions/xpackageunregisterpackageinstalled) | Unregisters a previously registered install complete callback. | | [XPackageUpdateInstallationMonitor](/reference/system/xpackage/functions/xpackageupdateinstallationmonitor) | Refreshes the progress returned from [XPackageGetInstallationProgress](/reference/system/xpackage/functions/xpackagegetinstallationprogress). | ## Structures | Structure | Description | | ----------------------------------------------------------------------------------------------- | ----------------------------------------------------------- | | [XPackageChunkSelector](/reference/system/xpackage/structs/xpackagechunkselector) | Defines the criteria for selecting a set of chunks. | | [XPackageDetails](/reference/system/xpackage/structs/xpackagedetails) | Contains details about an installation. | | [XPackageFeature](/reference/system/xpackage/structs/xpackagefeature) | Describes a feature. | | [XPackageInstallationProgress](/reference/system/xpackage/structs/xpackageinstallationprogress) | Contains information about the progress of an installation. | | [XPackageWriteStats](/reference/system/xpackage/structs/xpackagewritestats) | Contains the output write statistics (writeStats). | ## Enumerations | Enumeration | Description | | --------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------- | | [XPackageChunkAvailability](/reference/system/xpackage/enums/xpackagechunkavailability) | Indicates the availability of installation chunks. | | [XPackageChunkSelectorType](/reference/system/xpackage/enums/xpackagechunkselectortype) | Indicates the selector type. | | [XPackageEnumerationScope](/reference/system/xpackage/enums/xpackageenumerationscope) | Indicates the scope of packages to be returned when installation packages are being enumerated. | | [XPackageKind](/reference/system/xpackage/enums/xpackagekind) | Indicates the type of the installation package. | ## Error Codes The following error codes may be returned by XPackage APIs. For a complete list, see [Error codes](/reference/errorcodes). | Code | Value | Description | | ---------------------------------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------- | | E\_GAMEPACKAGE\_APP\_NOT\_PACKAGED | 0x89245200 | The game is not packaged in a container. | | E\_GAMEPACKAGE\_NO\_INSTALLED\_LANGUAGES | 0x89245201 | The game uses Intelligent Delivery to selectively install languages, but none are installed. | | E\_GAMEPACKAGE\_NO\_STORE\_ID | 0x89245202 | The StoreId attribute must be set in the application's game config. | | E\_GAMEPACKAGE\_INVALID\_SELECTOR | 0x89245203 | A chunk selector was provided that does not resolve to a chunk in the package. | | E\_GAMEPACKAGE\_DOWNLOAD\_REQUIRED | 0x89245204 | One or more required chunks must be downloaded to mount the package on this device. | | E\_GAMEPACKAGE\_NO\_TAG\_CHANGE | 0x89245205 | Change installed chunks in this package using Features, not tags. | | E\_GAMEPACKAGE\_DLC\_NOT\_SUPPORTED | 0x89245206 | Game does not support the DLC package. Ensure correct DLC compatibility in the game config. | | E\_GAMEPACKAGE\_DUPLICATE\_ID\_VALUES | 0x89245207 | The package contains more than one executable mapping to the same 'ID' attribute. Check for duplicate 'ID' attributes in the 'Executable' elements. | | E\_GAMEPACKAGE\_NO\_PACKAGE\_IDENTIFIER | 0x89245208 | Could not resolve an identifier for the package. The package might not be installed. | ## Conceptual documentation * [XStore checking for updates](/publishing/xstore-commerce/xstore-checking-updates) * [XStore grant access to content](/publishing/xstore-commerce/xstore-granting-access) * [XStore manage and license optional packages](/publishing/xstore-commerce/xstore-dlc) ## See also [System API reference](/reference/system/gc-reference-system-toc)\ [XStore API reference](/reference/system/xstore/xstore_members) ## Related topics - [XPackageEnumeratePackages](/reference/system/xpackage/functions/xpackageenumeratepackages.md) - [XPackageUninstallPackage](/reference/system/xpackage/functions/xpackageuninstallpackage.md) - [XPackageUnregisterPackageInstalled](/reference/system/xpackage/functions/xpackageunregisterpackageinstalled.md) - [XPackageRegisterPackageInstalled](/reference/system/xpackage/functions/xpackageregisterpackageinstalled.md) - [XPackageDetails](/reference/system/xpackage/structs/xpackagedetails.md)