| ActualWork | Contains the actual effort (in minutes) spent on the task. |
| AppointmentEndTime | Contains appointment's the end date and time. |
| AppointmentMessageClass | Contains appointment's message class. |
| AppointmentStartTime | Contains appointment's the start date and time. |
| AssistentName | Contains the name of assistent of the contact. |
| AssistentPhone | Contains assistent's phone number of the contact. |
| Attachments | Contains collection of attachments. |
| BillingInformation | Contains the billing information associated with a message. |
| Birthday | Contains the birthday date for the contact. |
| Body | Contains the message text. |
| BodyHtml | Contains the Hypertext Markup Language (HTML) version of the message text. |
| BodyHtmlText | Contains the Hypertext Markup Language (HTML) version of the message text. |
| BodyRtf | Contains the Rich Text Format (RTF) version of the message text. |
| BusinessAddress | Contains the whole, unparsed business address for the contact. |
| BusinessAddressCity | Contains the city name portion of the business address for the contact. |
| BusinessAddressCountry | Contains the country/region code portion of the business address for the contact. |
| BusinessAddressPostalCode | Contains the postal code (zip code) portion of the business address for the contact. |
| BusinessAddressPostOfficeBox | Contains the post office box number portion of the business address for the contact. |
| BusinessAddressState | Contains the state code portion of the business address for the contact. |
| BusinessAddressStreet | Contains the street address portion of the business address for the contact. |
| BusinessFax | Contains the business fax number for the contact. |
| BusinessHomePage | Contains the url of the business Web page for the contact. |
| BusinessPhone | Contains the first business telephone number for the contact. |
| BusinessPhone2 | Contains the second business telephone number for the contact. |
| BusyStatus | Contains appointment's busy status. |
| CallbackPhone | Contains the callback telephone number for the contact. |
| CarPhone | Contains the car telephone number for the contact. |
| Categories | Contains the categories associated with a message. |
| CellularPhone | Contains the mobile telephone number for the contact. |
| ChangeKey | Contains a change key of a message. |
| ChildrenNames | Contains the names of the children of the contact. |
| ClientSubmitTime | Contains the date and time the message sender submitted a message. |
| CommonEndTime | Contains the end date and time of a message. |
| CommonStartTime | Contains the start date and time of a message. |
| Companies | Contains the names of the companies associated with the contact item. |
| CompanyMainPhone | Contains the company main telephone number for the contact. |
| CompanyName | Contains the company name for the contact. |
| ComputerNetworkName | Contains the name of the computer network for the contact. |
| ContactHasPicture | Contains true if the contact has picture. |
| ContactNames | Contains the names of the contacts associated with the item. |
| ConversationIndex | Contains a binary value that indicates the relative position of this message within a conversation thread. |
| ConversationTopic | Contains the topic of the first message in a conversation thread. |
| CreationTime | Contains the creation date and time of the message. |
| CreatorName | Contains name of the person who created message. |
| CustomerId | Contains the customer ID for the contact. |
| DateCompleted | Contains the completion date of the task. |
| DeferredDeliveryTime | Contains the date and time when a message sender wants a message delivered. |
| Delegator | Contains task's delegator name. |
| DeliveryReportRequested | Gets or sets a value indicating whether [delivery report requested]. |
| DepartmentName | Contains the department name for the contact. |
| DisableFullFidelity | Gets or sets a value indicating whether [disable full fidelity]. |
| DisplayBcc | Contains an ASCII list of the display names of any blind carbon copy (BCC) message recipients, separated by semicolons (;). |
| DisplayCc | Contains an ASCII list of the display names of any carbon copy (CC) message recipients, separated by semicolons (;). |
| DisplayName | Contains display name. |
| DisplayNamePrefix | Contains display name prefix. |
| DisplayTo | Contains a list of the display names of the primary (To) message recipients, separated by semicolons (;). |
| Duration | Contains appointment's duration in minutes. |
| Email1Address | Contains the e-mail address of the first e-mail entry for the contact. |
| Email1DisplayAs | Contains the display as name of the first e-mail address for the contact. |
| Email1DisplayName | Contains the display name of the first e-mail address for the contact. |
| Email1EntryId | Contains the entry ID of the first e-mail address for the contact. |
| Email1Type | Contains the type of the first e-mail address for the contact. |
| Email2Address | Contains the e-mail address of the second e-mail entry for the contact. |
| Email2DisplayAs | Contains the display as name of the second e-mail address for the contact. |
| Email2DisplayName | Contains the display name of the second e-mail address for the contact. |
| Email2EntryId | Contains the entry ID of the second e-mail address for the contact. |
| Email2Type | Contains the type of the second e-mail address for the contact. |
| Email3Address | Contains the e-mail address of the third e-mail entry for the contact. |
| Email3DisplayAs | Contains the display as name of the third e-mail address for the contact. |
| Email3DisplayName | Contains the display name of the third e-mail address for the contact. |
| Email3EntryId | Contains the entry ID of the third e-mail address for the contact. |
| Email3Type | Contains the type of the third e-mail address for the contact. |
| Encoding | Gets or sets message encoding. Default is UTF8 encoding. |
| EntryId | Contains a MAPI entry identifier used to open and edit properties of a particular MAPI object. |
| ExtendedProperties | Contains collection of extended (custom) properties. |
| FileAs | Contains the default keyword string assigned to the contact when it is filed. |
| FlagDueBy | Contains the date and time specifying the date by which an e-mail message is due. |
| FlagIcon | Specifies the flag icon of the message object. |
| FlagStatus | Specifies the flag state of the message object. |
| FtpSite | Contains the FTP site entry for the contact. |
| Gender | Contains the gender of the contact. |
| Generation | Contains the generation for the contact. |
| GivenName | Contains the given name for the contact. |
| GovernmentId | Contains the government ID number for the contact. |
| Guid | Contains message's global unique id. |
| HasAttachment | Contains true if a message contains at least one attachment. |
| Hobbies | Contains the hobby names for the contact. |
| HomeAddress | Contains the whole, unparsed home address for the contact. |
| HomeAddressCity | Contains the city portion of the home address for the contact. |
| HomeAddressCountry | Contains the country/region portion of the home address for the contact. |
| HomeAddressPostalCode | Contains the postal code portion of the home address for the contact. |
| HomeAddressPostOfficeBox | Contains the post office box number portion of the home address for the contact. |
| HomeAddressState | Contains the state portion of the home address for the contact. |
| HomeAddressStreet | Contains the street portion of the home address for the contact. |
| HomeFax | Contains the home fax number for the contact. |
| HomePhone | Contains the first home telephone number for the contact. |
| HomePhone2 | Contains the second home telephone number for the contact. |
| IconIndex | Contains a number that indicates which icon to use when you display a group of e-mail objects. |
| Importance | Contains a value that indicates the message sender's opinion of the importance of a message. |
| Initials | Contains the initials for the contact. |
| InReplyTo | Contains the identifier of the message to which this message is a reply. |
| InstantMessengerAddress | Contains the instant messenger address for the contact. |
| InternetAccountName | Contains account name or email address. |
| InternetCodePage | Indicates the code page used for the Body or the BodyHtml properties. |
| InternetFreeBusyAddress | Contains the url location of the user's free-busy information in vCard Free-Busy standard format. |
| InternetMessageId | Contains unique ID for the message. |
| InternetReferences | Contains Internet reference ID for the message. |
| IsAllDayEvent | Contains true if the appointment is all day event. |
| IsComplete | Contains true if the task is complete. |
| Isdn | Contains the ISDN number for the contact. |
| IsEmbedded | Contains true if Message is embedded into another message object. |
| IsHidden | Contains true if message is invisible. |
| IsPrivate | Contains true if message is marked as private. |
| IsReadOnly | Contains true if message is read only. |
| IsRecurring | Contains true if the task or appointment is recurring. |
| IsReminderSet | Contains true if a reminder has been set for this appointment, e-mail item, or task. |
| IsSystem | Contains true if message is system message. |
| IsTeamTask | Contains true if the task is a team task. |
| JournalDuration | Contains journal's the duration in minutes. |
| JournalEndTime | Contains journal's the end date and time. |
| JournalStartTime | Contains journal's the start date and time. |
| JournalType | Contains the type of the journal item. |
| JournalTypeDescription | Contains the type description of the journal item. |
| Keywords | Contains the categories associated with a message. |
| Label | Contains appointment's label color. |
| LastModificationTime | Contains the date and time when the message was last modified. |
| LastModifierName | Contains name of the person who modified message. |
| LastVerbExecuted | Contains the last verb executed. |
| LastVerbExecutionTime | Contains the time when the last verb was executed. |
| Location | Contains appointment's location. |
| ManagerName | Contains the manager name for the contact. |
| MeetingStatus | Contains the status of the meeting. |
| MessageClass | Contains a text string that identifies the sender-defined message class, such as IPM.Note. |
| MessageCodePage | Contains the code page that is used for the message. |
| MessageDeliveryTime | Contains the date and time when a message was delivered. |
| MessageFlags | Contains a bitmask of flags that indicate the origin and current state of a message. |
| MiddleName | Contains the middle name for the contact. |
| Mileage | Contains free-form string value and can be used to store mileage information associated with the message. |
| Nickname | Contains the nickname for the contact. |
| NormalizedSubject | Contains the message subject with any prefix removed. |
| NoteColor | Contains background color of the note item. |
| NoteHeight | Contains height of the note item. |
| NoteLeft | Contains left position of the note item. |
| NoteTop | Contains top position of the note item. |
| NoteWidth | Contains width of the note item. |
| ObjectType | Contains the type of an object. |
| OfficeLocation | Contains the specific office location for the contact. |
| OriginalDisplayTo | Contains a list of the display names of the primary (To) message recipients, separated by semicolons (;). |
| OtherAddress | Contains the whole, unparsed other address for the contact. |
| OtherAddressCity | Contains the city portion of the other address for the contact. |
| OtherAddressCountry | Contains the country/region portion of the other address for the contact. |
| OtherAddressPostalCode | Contains the postal code portion of the other address for the contact. |
| OtherAddressState | Contains the state portion of the other address for the contact. |
| OtherAddressStreet | Contains the street portion of the other address for the contact. |
| OtherPhone | Contains the other telephone number for the contact. |
| OutlookInternalVersion | Contains internal version number of Microsoft Office Outlook client. |
| OutlookVersion | Contains version number of Microsoft Office Outlook client. |
| Owner | Contains task's owner name. |
| Pager | Contains the pager number for the contact. |
| PercentComplete | Contains the percentage of the task completed at the current date and time. |
| PersonalHomePage | Contains the url of the personal Web page for the contact. |
| PostalAddress | Contains the postal address for the contact. |
| PrimaryFax | Contains the primary fax number for the contact. |
| PrimaryPhone | Contains the primary telephone number for the contact. |
| Priority | Contains the relative priority of a message. |
| Profession | Contains the profession for the contact. |
| ProviderSubmitTime | Contains the date and time the mail provider submitted a message. |
| RadioPhone | Contains the radio telephone number for the contact. |
| ReadReceiptEntryId | Gets or sets the read receipt entry identifier. |
| ReadReceiptRequested | Gets or sets a value indicating whether [read receipt requested]. |
| ReadReceiptSearchKey | Gets or sets the read receipt search key. |
| ReceivedByAddressType | Contains the e-mail address type, such as SMTP, for the messaging user who actually receives the message. |
| ReceivedByEmailAddress | Contains the e-mail address for the messaging user who receives the message. |
| ReceivedByEntryId | Contains the entry identifier of the messaging user who actually receives the message. |
| ReceivedByName | Contains the display name of the messaging user who receives the message. |
| ReceivedBySearchKey | Contains the search key of the messaging user who receives the message. |
| ReceivedRepresentingAddressType | Contains the address type for the messaging user who is represented by the user actually receiving the message. |
| ReceivedRepresentingEmailAddress | Contains the e-mail address for the messaging user who is represented by the receiving user. |
| ReceivedRepresentingEntryId | Contains the entry identifier for the messaging user who is represented by the receiving user. |
| ReceivedRepresentingName | Contains the display name for the messaging user who is represented by the receiving user. |
| ReceivedRepresentingSearchKey | Contains the search key for the messaging user represented by the receiving user. |
| Recipients | Contains collection of recipients. |
| RecurrencePattern | Contains appoinmtment or task recurring pattern. |
| RecurrencePatternDescription | Contains recurring pattern description. |
| RecurrenceType | Contains the recurrence pattern type. |
| ReminderMinutesBeforeStart | Contains the number of minutes the reminder should occur prior to the start of the appointment. |
| ReminderOverrideDefault | Contains true if the reminder overrides the default reminder behavior for the appointment, mail item, or task. |
| ReminderPlaySound | Contains true if the reminder should play a sound when it occurs for this appointment or task. |
| ReminderSoundFile | Contains the path and file name of the sound file to play when the reminder occurs for the appointment, mail message, or task. |
| ReminderTime | Contains the date and time at which the reminder should occur for the specified item. |
| ReplyTo | Contains reply to email address. |
| ReportText | Contains report text. |
| ReportTime | Contains the report date and time. |
| ResponseStatus | Contains the response to a meeting request. |
| RtfCompressed | Contains the Rich Text Format (RTF) version of the message text, usually in compressed form. |
| RtfInSync | Contains true if the RtfCompressed property has the same text content as the Body property for this message. |
| SearchKey | Contains a binary-comparable key that identifies correlated objects for a search. |
| SelectedMailingAddress | Contains the type of the mailing address for the contact. |
| SenderAddressType | Contains the message sender's e-mail address type. |
| SenderEmailAddress | Contains the message sender's e-mail address. |
| SenderEntryId | Contains the message sender's entry identifier. |
| SenderName | Contains the message sender's display name. |
| SenderSearchKey | Contains the message sender's search key. |
| SenderSmtpAddress | Contains the message sender's e-mail address. |
| Sensitivity | Contains a value that indicates the message sender's opinion of the sensitivity of a message. |
| SentRepresentingAddressType | Contains the address type for the messaging user who is represented by the sender. |
| SentRepresentingEmailAddress | Contains the e-mail address for the messaging user who is represented by the sender. |
| SentRepresentingEntryId | Contains the entry identifier for the messaging user represented by the sender. |
| SentRepresentingName | Contains the display name for the messaging user represented by the sender. |
| SentRepresentingSearchKey | Contains the search key for the messaging user represented by the sender. |
| SentRepresentingSmtpAddress | Contains the e-mail address for the messaging user who is represented by the sender. |
| Size | Contains the size of the body, subject, sender, and attachments. |
| SpouseName | Contains the spouse name for the contact. |
| StoreSupportMasks | Contains values that client applications should query to determine the characteristics of a message store. |
| Subject | Contains the full subject of a message. |
| SubjectPrefix | Contains a subject prefix that typically indicates some action on a message, such as "FW: " for forwarding. |
| Surname | Contains the last name for the contact. |
| TaskDelegationState | Contains the delegation state of a task. |
| TaskDueDate | Contains task's the due date and time. |
| TaskOwnership | Contains the ownership state of the task. |
| TaskStartDate | Contains task's the start date and time. |
| TaskStatus | Contains the status of the task. |
| Telex | Contains the telex number for the contact. |
| TimeZone | Contains appointment's time zone. |
| Title | Contains the title for the contact. |
| TotalWork | Contains the total work for the task. |
| TransportMessageHeaders | Contains transport-specific message envelope information. |
| TtyTddPhone | Contains the TTY/TDD telephone number for the contact. |
| WeddingAnniversary | Contains the wedding anniversary date for the contact. |