The PST file format is used to store copies of messages, calendar events and other data items within Microsoft Software such as MS Outlook. In Microsoft Exchange Server, messages are stored on the server, Microsoft Outlook stores these messages and data items in a (.pst files) that are located on the local computer to maintain offline availability of the items. At the logical level, a .pst file has three layers: the Node Database (NDB) layer, the Lists, Tables, and Properties (LTP) layer, and the Messaging layer.these layers defines data and controls that are used to allow the mail client reach message in the folder with correct information. For more information, refer to https://en.wikipedia.org/wiki/Personal_Storage_Table.
The MSG file format is used for MS Outlook messages when saved as files of disk. An (.msg) file is a Compound Binary File (CFBF) that is used to store numerous files and streams within a single file on disk. It is partitioned in sections which are chained using the File-Allocation-Table (FAT) system which contains Chains of sectors related to each other and a Directory that holds information for contained files with a Sector ID for the starting sector of a chain and so on. For more information, refer to Outlook Message.
The EML file format is a MIME (Multipurpose Internet Mail Extensions) file format that defines a mechanism for sending information in email. The information includes text in languages other than English using character encoding other than ASCII, and 8-bit binary content such as files containing images, sounds and movies in one single file. An Eml file is a multi-part file containing the message body itself and any attached images(base64-encoded) or attachments 'inline' with the text. Another extension for the EML files is the (.mht) extension, used to open the email message file with internet browsers. For more information, refer to MIME.
LEADTOOLS supports loading only for this format.
This format is available in selected LEADTOOLS products.
The default extensions used by this format are: .pst, .msg, .eml, and .mht.
File constants associated with this file format are:
|Constant||Read Support||Write Support||Description|
|Pst||24 BPP||None||MS Outlook Personal Storage Tables (PST)|
|Msg||24 BPP||None||MS Outlookd message (MSG)|
|Eml||24 BPP||None||Multipurpose Internet Mail Extensions (EML)|
Required DLL: Leadtools.Codecs.Pst.Dll, Leadtools.Codecs.Rtf.Dll, Leadtools.Codecs.Htm.Dll, Leadtools.Codecs.Txt.Dll, Leadtools.Codecs.Cmp.Dll, Leadtools.Codecs.Gif.Dll, Leadtools.Codecs.Png.Dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application. Related Formats: RTF - Rich Text Format, HTM - Hypertext Markup Language.
|Pst||PST||385||✔||✔||✔||✔||✔||✔||application/vnd.ms-outlook||PST - Outlook Format|
|Msg||MSG||386||✔||✔||✔||✔||✔||✔||application/vnd.ms-outlook||MSG - Outlook Format|
|Eml||EML||387||✔||✔||✔||✔||✔||✔||application/vnd.ms-outlook||EML - Outlook Format|
For a complete list for supported file formats, see Summary of All Supported File Formats.
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