| Platform SDK: Exchange 2000 Server |
[This is preliminary documentation and subject to change.]
New Internet standards enable you to send meeting requests to users on various calendaring systems. The iCalendar specification (RFC 2445) defines the format of calendar information sent between calendar user agents (CUAs). Calendar user agents are client programs such as Microsoft® Outlook®. You can use CDO to send calendar information to any CUA that complies with the iCalendar specification.
CDO also creates a plain text representation of calendar messages. When you send a meeting request or response to users who do not have iCalendar-compliant e-mail clients, they see the plain text version of the meeting, including the start and end times, location, subject, and meeting description.
Microsoft Exchange 2000 Server supports the iCalendar specification as an interchange format. Exchange automatically converts calendar information into the correct format for client programs including CDO, Outlook, and Schedule +.
iCalendar information is transported across the Internet as a MIME formatted message. The MIME body part containing iCalendar information has a content type of "text/calendar." The following example shows a typical iCalendar meeting request.
X-Receiver: someone@microsoft.com
X-Receiver: another@microsoft.com
X-Sender: user12@exchange.microsoft.com
thread-index: Ab76K9YbzaPyz4RUTJWwZL3wQ+HxyA==
Content-Class: urn:content-classes:calendarmessage
From: <user12@exchange.microsoft.com>
Sender: <user12@exchange.microsoft.com>
To: <someone@microsoft.com>
Cc: <another@microsoft.com>
Subject: Documentation Review Meeting
Date: Wed, 8 Sep 1999 11:56:19 -0700
Message-ID: <000201befa2b$d62c2e70$79b41eac@exchange.microsoft.com>
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0003_01BEF9F1.29D23870"
Content-Transfer-Encoding: 7bit
X-Mailer: Microsoft CDO for Exchange Server
X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.5500
This is a multi-part message in MIME format.
------=_NextPart_000_0003_01BEF9F1.29D23870
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: 7bit
Type : Single Meeting
Organizer : MAILTO:user12@exchange.microsoft.com
Start Time : 09/09/1999 10:00
End Time : 09/09/1999 11:30
Time Zone : Local time
Location : Executive Conference Room
*~*~*~*~*~*~*~*~*~*
------=_NextPart_000_0003_01BEF9F1.29D23870
Content-Class: urn:content-classes:calendarmessage
Content-Type: text/calendar;
method=REQUEST;
charset="utf-8"
Content-Transfer-Encoding: 7bit
BEGIN:VCALENDAR
METHOD:REQUEST
PRODID:Microsoft CDO for Microsoft Exchange
VERSION:2.0
BEGIN:VEVENT
DTSTAMP:19990908T185620Z
DTSTART:19990909T100000
SUMMARY:Documentation Review Meeting
UID:{A6DEF157-DFCE-40F4-AC77-217563191E7B}
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE:MAILTO:someone@microsoft.com
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE:MAILTO:another@microsoft.com
ORGANIZER;ROLE=REQ-PARTICIPANT;PARTSTAT=ACCEPTED;RSVP=TRUE:MAILTO:user12@exchange.microsoft.com
LOCATION:Executive Conference Room
DTEND:19990909T113000
SEQUENCE:0
PRIORITY:5
CLASS:Personal
CREATED:19990908T185620Z
LAST-MODIFIED:19990908T185620Z
STATUS:CONFIRMED
TRANSP:OPAQUE
X-MICROSOFT-CDO-BUSYSTATUS:BUSY
X-MICROSOFT-CDO-INSTTYPE:0
END:VEVENT
END:VCALENDAR
------=_NextPart_000_0003_01BEF9F1.29D23870--
For more information on the iCalendar format, see Request for Comment (RFC) 2445.