Core

In this section

Topic	Description
System.AcquisitionID	A hash value that indicates the acquisition session.
System.ApplicationDefinedProperties
System.ApplicationName	The name of the application that created this file or item. Do not use version numbers to identify the application's specific version.
System.AppZoneIdentifier	Mark of the app container. The zone identifier as determined by the file's last writer.
System.Author	Represents the author or authors of the document.
System.CachedFileUpdaterContentIdForConflictResolution
System.CachedFileUpdaterContentIdForStream
System.Capacity	The amount of total storage space, expressed in bytes.
System.Category	Deprecated. The category that can be assigned to an item such as a document or file.
System.Comment	The comment attached to a file, typically added by a user.
System.Company	The company or publisher.
System.ComputerName	The name of the computer where the item or file is located.
System.ContainedItems	A list of the type of content in the item.
System.ContentStatus
System.ContentType
System.Copyright	The copyright information stored as a string.
System.CreatorAppId	The AppId of the application that created this file.
System.CreatorOpenWithUIOptions	Provides options that influence the behavior of UI controls that launch the file with the app specified in System.CreatorAppId.
System.DataObjectFormat	The data object format. A string value that is the clipboard format name.
System.DateAccessed	Indicates the last time the item was accessed. The Indexing Service friendly name is "access".
System.DateAcquired	The acquisition date of the file or media.
System.DateArchived	The date the file item was last archived.
System.DateCompleted
System.DateCreated	The date and time the item was created on the file system where it is currently located.
System.DateImported	The date and time the file was imported into a private application database.
System.DateModified	The date and time of the last modification to the item. The Indexing Service friendly name is 'write'.
System.DefaultSaveLocationDisplay	Helps display as an icon whether or not a location is the default save location for owner and/or non-owners of a library
System.DueDate
System.EndDate
System.ExpandoProperties	Properties that are not stored in the item itself, where the properties are in the form of a stream containing a SERIALIZEDPROPSTORAGE.
System.FileAllocationSize
System.FileAttributes	The attributes of the item. These are equivalent to the values recognized in the dwFileAttributes member of the WIN32_FIND_DATA structure.
System.FileCount
System.FileDescription	A user-friendly description of the file.
System.FileExtension	Identifies the file extension of the file-based item, including the leading period.
System.FileFRN	The unique file ID, also known as the File Reference Number.
System.FileName	The file name, including its extension.
System.FileOfflineAvailabilityStatus	Null indicates the normal case (file is available offline). The partial case is only for folders where some content may be available offline and some may not.
System.FileOwner	The owner of the file, as known by the file system.
System.FilePlaceholderStatus	Contains the placeholder file's status flags.
System.FileVersion
System.FindData	Contains the WIN32_FIND_DATA structure as a buffer of bytes. Do not use this property for any other purpose.
System.FlagColor
System.FlagColorText	The user-friendly form of System.FlagColor. This value is not intended to be parsed programmatically.
System.FlagStatus	The status of a flag. Values: (0=none 1=white 2=Red).
System.FlagStatusText	The user-friendly form of System.FlagStatus. This value is not intended to be parsed programmatically.
System.FolderKind	This property represents the types of content stored in this folder specified by the storage provider.Each folder type must be one of the known value specified by System.Kind definitionSystem.FolderKind is a readonly property, it should only be updated by the storage provider.
System.FolderNameDisplay	This property is similar to System.ItemNameDisplay except it is only set for folders, for files it will be empty. This is useful to segregate files and folders by using this as the first sort key. When System.ItemDate is used as a second sort key it produces results with folders first ordered by name, then files ordered by date.
System.FreeSpace	The amount of free space in a volume, in bytes.
System.FullText	This property is used to specify search terms that should be applied as broadly as possible across all valid properties for the data source(s) being searched. It should not be emitted from a data source.
System.HighKeywords	The high confidence keywords for the item.
System.ImageParsingName	Image parsing name.
System.Importance
System.ImportanceText	The user-friendly form of System.Importance. This value is not intended to be parsed programmatically.
System.IsAttachment	Identifies whether the item is an attachment.
System.IsDefaultNonOwnerSaveLocation	Identifies the default save location for a library for non-owners of the library.
System.IsDefaultSaveLocation	Identifies the default save location for a library for the owner of the library.
System.IsDeleted
System.IsEncrypted	Identifies whether the item is encrypted.
System.IsFlagged
System.IsFlaggedComplete
System.IsIncomplete	Identifies whether the message was completely received. This value is used with some error conditions.
System.IsLocationSupported	Identifies whether a location was indexed (locally or remotely) at the time it was added to the library.
System.IsPinnedToNameSpaceTree	Identifies whether a shell folder is pinned to the navigation pane.
System.IsRead	Identifies whether the item has been read.
System.IsSearchOnlyItem	Identifies whether a location or a library is search only.
System.IsSendToTarget	Indicates whether an item is a valid SendTo target. This information is provided by certain Shell folders.
System.IsShared	Indicates whether the item is shared. This checks only the non-inherited ACLs.
System.ItemAuthors	Generic list of authors associated with an item. For example, the artist name for a music track is the item author.
System.ItemClassType	Class type of the item.
System.ItemDate	The primary date of interest for an item. In the case of photos, for example, this property maps to System.Photo.DateTaken.
System.ItemFolderNameDisplay	The user-friendly display name of an item's parent folder.
System.ItemFolderPathDisplay	The user-friendly display path of an item's parent folder.
System.ItemFolderPathDisplayNarrow	The user-friendly display path of an item's parent folder.
System.ItemName	The base name of the System.ItemNameDisplay property.
System.ItemNameDisplay	The display name in "most complete" form.
System.ItemNameDisplayWithoutExtension	This is similar to System.ItemNameDisplay except that it never includes a file extension.
System.ItemNamePrefix	The prefix of an item, used for e-mail messages where the subject begins with the prefix "Re:".
System.ItemNameSortOverride	This string should be set to the phonetic version of the display name as defined in System.ItemNameDisplay in CJK locales(CHS Pinyin, JPN Hiragana, KOR Hangul, etc.). The first character of this field is also used for grouping names by firstletter. For most non-CJK languages, this field does not need to be set (in which case System.ItemNameDisplay will be used).However, if it is desirable to override the grouping letter (for example, to remove leading articles such as "a" and "the"),an alternate string can be provided here.
System.ItemParticipants	The generic list of people associated with and contributing to an item.
System.ItemPathDisplay	The user-friendly display path to the item.
System.ItemPathDisplayNarrow	The user-friendly display path to the item.
System.ItemSubType	Describes the sub-type of an item. The value is intended for display to the user.In contrast to System.ItemType, which is generally used to describe a class of itemsthat all have the same common content format, System.ItemSubType may differ based onthe individual contents or purpose of the item.For example, this property may be used to identify an item with System.ItemType = "jpg"as System.ItemSubType = "Panorama" or System.ItemSubType = "Smart Shot".
System.ItemType	The canonical type of the item.
System.ItemTypeText	The user-friendly type name of the item.
System.ItemUrl	Represents a well-formed URL that points to the item.
System.Keywords	The set of keywords (also known as "tags") assigned to the item.
System.Kind	Maps extensions to various .Search folders.
System.KindText	The user-friendly form of System.Kind. This value is not intended to be parsed programmatically.
System.Language	The primary language of the file, particularly if that file is a document.
System.LastSyncError
System.LastWriterPackageFamilyName	Mark of the app container. The package family name of the last app to edit the file's contents.
System.LowKeywords	The low confidence keywords for the item.
System.MediumKeywords	The medium confidence keywords for the item.
System.MileageInformation
System.MIMEType	The MIME type.
System.Null
System.OfflineAvailability
System.OfflineStatus
System.OriginalFileName
System.OwnerSID	SID of the user that owns the library.
System.ParentalRating	The parental rating stored in a format typically determined by the organization named in System.ParentalRatingsOrganization.
System.ParentalRatingReason	Explains file ratings.
System.ParentalRatingsOrganization	The name of the organization whose rating system is used for System.ParentalRating.
System.ParsingBindContext	Used to get the IBindCtx for an item to be parsed.
System.ParsingName	The Shell namespace name of an item relative to a parent folder.
System.ParsingPath	The Shell namespace path to the item.
System.PerceivedType	The perceived file type based on its canonical type.
System.PercentFull	The amount of space filled, as a percentage.
System.Priority
System.PriorityText	The user-friendly form of System.Priority. This value is not intended to be parsed programmatically.
System.Project
System.ProviderItemID
System.Rating	A rating system that uses integer values between 1 and 99. This is the rating system used by the Windows Vista Shell.
System.RatingText	The user-friendly form of System.Rating. This value is not intended to be parsed programmatically.
System.RemoteConflictingFile
System.Sensitivity
System.SensitivityText	The user-friendly form of System.Sensitivity. This value is not intended to be parsed programmatically.
System.SFGAOFlags	SFGAO values as used in IShellFolder::GetAttributesOf.
System.SharedWith	Indicates who the item is shared with.
System.ShareUserRating
System.SharingStatus	Indicates the sharing status of an item: Not Shared, Shared, Everyone (homegroup or everyone), or Private.
System.Shell.OmitFromView	Omits an item from Shell views.
System.SimpleRating	A rating system that uses a range of integer values between 0 and 5.
System.Size	The system-provided file system size of the item, in bytes.
System.SoftwareUsed
System.SourceItem
System.SourcePackageFamilyName	Package family name of the app which the storage item instance originated.
System.StartDate
System.Status	Generic status information applicable to the item.
System.StorageProviderCallerVersionInformation	The storage provider caller protocol version information.The format of this property is provider specific, refer to the storage provider documentation for more information.
System.StorageProviderError
System.StorageProviderFileChecksum	The checksum computed by the storage provider for the file. Files with the same checksum value will have the same contents.
System.StorageProviderFileIdentifier	The storage provider identifier for this file.
System.StorageProviderFileRemoteUri	The storage provider's remote Uri for this file.
System.StorageProviderFileVersion	The storage provider file version for this file.
System.StorageProviderFileVersionWaterline	The storage provider computed file version waterline for this file. This value is used to detect if a file has changed.
System.StorageProviderId	This property represents the [Storage Provider ID] part of the fully-qualified provider identifier"[Storage Provider ID]![Windows SID]![Account ID]".
System.StorageProviderShareStatuses	This property represents a list of share statuses for the file/folder specified by the storage provider.Each share status must be one of the known value specified by the enumerations belowStorageProviderShareStatuses is a readonly property, it should only be updated by the storage provider.
System.StorageProviderSharingStatus	This property represents the most permissive share status for the file/folder specified by the storage provider.The share statuses from most to least permissive are Owned > Co-owned > Public > Shared > Private.StorageProviderSharingStatus is a readonly property.
System.StorageProviderStatus
System.Subject	The subject of a document. This property maps to the OLE document property Subject.
System.SyncTransferStatus
System.Thumbnail	Represents the thumbnail in VT_CF format.
System.ThumbnailCacheId	A unique value used as a key to cache thumbnails.
System.ThumbnailStream	Data that represents the thumbnail in VT_STREAM format, supported by Windows GDI+ and Windows codecs such as .jpg and .png.
System.Title	The title of the item.
System.TitleSortOverride	This optional string value allows for overriding the standard sort order of System.Title.This is very important for proper sorting of music files in Japanese which cannot becorrectly sorted phonetically (the user-expected ordering) without this field.It can also be used for customizing sorting in non-East Asian scenarios,such as allowing the user to remove articles for sorting purposes.
System.TotalFileSize
System.Trademarks	The trademark associated with the item, in a string format.
System.TransferOrder
System.TransferPosition
System.TransferSize
System.VolumeId	The GUID of the NTFS Volume.
System.ZoneIdentifier	Mark of the Web zone, as URLZONE enumeration value.