MSG330

Developing with Microsoft® Exchange

Susan HillLead Programmer WriterMicrosoft Corporation

Agenda

Overview of Exchange 2003General Design GuidelinesMessaging ScenariosCalendaring ScenariosCustomizing Exchange Behavior with Store EventsComponentizing with Web ServicesLooking forward to XSO

Overview of Exchange 2003

Exchange 2003What still works?

Data access methodsCDO for Exchange 2000 (CDOEX)ADO access using ExOLEDBADO access using MSDAIPPCDO 1.2x (server and client)HTTP and WebDAV Extended MAPI (MAPI) CDO for Exchange Management (CDOEXM)

Events and notificationsExOLEDB store eventsTransport eventsMAPI notificationsWebDAV notificationsIncremental Change Synchronization (ICS)Exchange 5.5 event agent service

Application technologiesExchange Web formsExchange 2000 workflow modelExchange 5.5 routing engine

Exchange 2003What’s changed?

Heavy focus on security fixesImproved ExOLEDB startup performanceFixed the 256 logon limitation in WebDAV

Ex 2000 and Ex 2003 Hotfix; Ex 2003 SP1

Secure by Default Exchange Domain Servers security group locked down by defaultPermission denied by default to create top level folders

Exchange 2003What’s new?

Managed wrapper for transport event sinks

MSG 332: Developing Transport Event Messaging Solutions for Windows and Exchange

Additional WMI providersMSG 334: Creating Exchange Administrative Scripting for the Non-Programmer

General Design Guidelines

Exchange ApplicationsBest Bets

Fundamental collaboration servicesCalendaring, Messaging, Contacts, etc.Web services, ASPX/ASP, public folder apps

Customizing Exchange BehaviorEvents and notificationsStand-alone or application enhancers

Customizing a ClientModifying Outlook, OWA

Person-to-person workflowExchange Workflow

Exchange management applicationsCDOEXM, WMI, Active Directory

Specialized applications (infrastructure) Anti-virus, backup/restore

Exchange Resource Options

Resource mailboxExposes server-side services such as scheduling logic and AV scanningUses a “provider” access modelMore flexibility in applying quotas

Public folderAllows ad-hoc creationBuilt-in access roles (reviewer, editor, publishing author, etc)Accessible by default through Outlook or OWA

Resource MailboxResource Mailbox

demodemo

Data Access Guidelines Binaries deployed on the Exchange server

Application scenariosStore events

Transport events

Web services

ASP / ASPX applications

Data accessCDOEx, ExOLEDB (native ADO)

Others: CDO 1.2, MAPI

Data Access Guidelines Binaries deployed on another server or client

Application scenariosTransport events

Web services

ASP / ASPX applications

Data accessWebDAV, System.Web.Mail, CDOSYS

Others: CDO 1.2, MAPI, MSDAIPP (native ADO), Outlook object model (OOM)

Data Access Guidelines Application written in managed code

Application scenariosWeb servicesASPX applications

Data accessDeploying on the Exchange server

CDOEx, ExOLEDB

Deploying on another server or clientWebDAV, System.Web.MailOthers: CDOSYS, OOM

Messaging Scenarios

Creating Newsletter Generators

Just want to generate a bunch of e-mail

CDOSYS is the best betShips in Windows (2000, XP, 2003)

Pure subset of CDOExReplaced by CDOEx on Exchange servers

Sends mail using SMTP port, pickup directory, or Exchange

Sending Mail in ASP.Net

System.Web.MailOptimized for ASP .NetWrapper to CDOSYSNo POP support

WebDAVUses the DAV:submissionuriMust have the user's credentials or Send On Behalf Of rights for that mailbox Only method that writes to the Sent Items folder

CDOExApplication must reside on the Exchange ServerMaintains custom properties

Sending Mail from an Sending Mail from an ASP.Net ApplicationASP.Net Application

demodemo

Calendaring Scenarios

Calendaring In .NET Apps Querying a calendar

WebDAV, (ExOLEDB)

Dates must be UTC normalized time

Dim sSQL As String = "SELECT "

sSQL += """urn:schemas:httpmail:subject"" AS subject, "

sSQL += """urn:schemas:calendar:dtstart"" AS startTime, "

sSQL += """urn:schemas:calendar:dtend"" AS endTime "

sSQL += " FROM SCOPE(‘SHALLOW TRAVERSAL OF """ & urlFld & """')"

sSQL += " WHERE (""urn:schemas:calendar:dtend"" < '" &

Format(utcEnd, "yyyy/MM/dd hh:mm:ss") + "')"

sSQL += " AND (""urn:schemas:calendar:dtstart"" > '" &

Format(utcStart, "yyyy/MM/dd hh:mm:ss") + "')"

sSQL += " ORDER BY ""urn:schemas:calendar:dtstart"" ASC"

Calendaring In .NET Apps Creating appointments and scheduling meetings

WebDAVAppointments are easy enough but meetings are tough (KB 308373)Must provide UID

OWA commandsEasy to schedule meetingsNot recommended because OWA reserves the right to change any calls

CDOExEasiest to useApplication must reside on the Exchange server

Calendaring from an Calendaring from an Application Server Using Application Server Using WebDAVWebDAV

demodemo

Querying for Free/Busy Information

Free/busy interfaces (CDOEx, OWA)General access to anyone’s published dataEasier to determine open slotsRequires a call to Active Directory to resolve the target addressData could be stale

Query a calendar directly (WebDAV, ADO)Public folders and resource mailboxesBest suited for finding previous bookingsRequires permission to view the calendarExisting data can be more up-to-date

Using Free/Busy Interfaces

CDOEx GetFreeBusy () method Exchange Docs SDKMust be on the Exchange server

OWA Freebusy commandhttp://Server_Name/public/?cmd=freebusy&start=ISO8601time&end=ISO8601time&interval=minutes&u=SMTP address [&u=user2&u=user3]

Both return integers representing the free/busy status for a particular interval

0:free; 1:tentative; 2:busy; 3:out of office; 4 unknown

Using OWA to Get Free/ Using OWA to Get Free/ Busy InformationBusy Information

demodemo

Customizing Exchange Behavior with Store Events

Basics of Store Events

Can be used on public folders and mailboxesSave, Delete, Timer, MDBStartup, MDBShutdown

Exposed via ExOLEDB.DLLMust run on the server

Two steps:Build the event sink and encapsulate it in a COM+ package

Create a store event registration bindingExchange Explorer Tool (Exchange Tools SDK)

Regevent utility (Exchange SDK)

Creating Store Event Sinks with Visual Studio .NET

Create a new class project

Derive the class from ServicedComponent

Strongly name an interop version of ExOLEDB.DLL and reference it

Add info on the target COM+ package

Strongly name the assembly

Register the assembly with regsvcs.exe

Automatically Processing Automatically Processing Requests in a Resource Requests in a Resource MailboxMailbox

demodemo

Using Web Services

Why Use Web Services with Exchange?

Can provide access to Exchange data outside of the firewall

Allows you to encapsulate and remote Exchange functionality

Easier to incorporate Exchange into existing applications

Building Web Services for Exchange 2000

General web service guidelines apply

Things to think about:Where will you store the web service?

What data access method will you use?

Which side of the firewall are your users?

Who will the Web service run as?

What do you want to do with the returned data?

Calendaring Web Calendaring Web ServiceService

demodemo

Code Name… XSO

XSO Overview

Managed code class libraryLeverages .NET Framework data types and classesTalks WebDAV to Exchange 2003

RemotableWorks anywhere with CLR installedMakes it easier to build .NET applications

IntuitiveTargets the enterprise developerDon’t need to be an Exchange expert to use it

Public beta expected to be available this fall

Sample XSO CodeDim mbx As ItemStore = New ItemStore()With mbx

.Source = strName + "@pangea.com"

.Credentials = New NetworkCredential( _strName, strpassword, "PANGEA.COM")

.Open()End With

Dim tsk As Task = New Task()With tsk

.Subject = "Task class" .Start = DateTime.Now .Due = .Start.AddDays(2) .Reminder = .Due.AddHours(-4) .Body.Text = "Build the task class!"End WithMbx.Folders(“Tasks”).Items.Add(tsk)

Summary

Use CDOEX and ExOLEDB when the source code runs on the Exchange serverUse System.Web.Mail or WebDAV when the source code must run elsewhereYou can build store and transport event sinks in managed code Web services expand the Exchange data access options and make it easier to codeXSO is the future

Resources

http://msdn.microsoft.com/exchangeExchange SDK downloads

Samples and DocumentationToolsWorkflow Designer

White papersWriting Managed Sinks for SMTP and Transport EventsExchange 2003 Developer Roadmap (Summer ’03)

Exchange XML Web Services ToolkitAdditional helpful sites:

HTTP://www.WebStorageD2D.com/HTTP://www.CDOLive.com/HTTP://www.slipstick.com/

Send comments, suggestions, etc. (especially on XSO!) to:mindym@microsoft.com

Exchange Community Resources

Exchange Community Web Pagehttp://www.microsoft.com/exchange/community

Exchange Newsgroupshttp://www.microsoft.com/exchange/community/newsgroups

Attend s Free Chat or Webcasthttp://www.microsoft.com/exchange/community/webcasts.asp Some recent Exchange webcasts still available for viewing

Exchange 2003 Overview: http://www.microsoft.com/usa/Webcasts/ondemand/1589.aspDecide between Exchange 2000 & Exchange 2003: http://searchwin2000.techtarget.com/content/0,290959,sid1_gci875523,00.html

Locate A Local User Grouphttp://microsoft.com/communities/usergroups/default.mspx

Exchange Developer Focus Groups

Give us feedback about your Exchange development experience

Today at 14:00

Tomorrow at 14:00

Sign upSee me after this session

Related Sessions

MSG 331: Exchange Server 2000/2003 Software Development Kit

Thursday, 03 July 11:45 - 13:00

MSG 334: Creating Exchange Administrative Scripting for the Non-Programmer

Thursday 03 July 16:45 - 18:00

MSG 332: Developing Transport Event Messaging Solutions for Microsoft® Windows® and Microsoft Exchange Server

Friday, 04 July 08:30 - 09:45

Ask The ExpertsGet Your Questions Answered

16:00 this afternoon

Suggested Reading And Resources

The tools you need to put technology to work!The tools you need to put technology to work!

TITLETITLE AvailableAvailable

Programming Microsoft® Programming Microsoft® Outlook® and Microsoft Exchange Outlook® and Microsoft Exchange 2003, Third Edition: 0-7356-1464-42003, Third Edition: 0-7356-1464-4

TodayToday

Microsoft® Exchange Server Microsoft® Exchange Server 2003 Administrator's 2003 Administrator's Companion: 0-7356-1979-4Companion: 0-7356-1979-4

TodayToday

Microsoft Press books are 20% off at the TechEd Bookstore

Also buy any TWO Microsoft Press books and get a FREE T-Shirt

Community Resources

Community Resourceshttp://www.microsoft.com/communities/default.mspx

Most Valuable Professional (MVP)http://www.mvp.support.microsoft.com/

NewsgroupsConverse online with Microsoft Newsgroups, including Worldwidehttp://www.microsoft.com/communities/newsgroups/default.mspx

User GroupsMeet and learn with your peershttp://www.microsoft.com/communities/usergroups/default.mspx

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© 2003 Microsoft Corporation. All rights reserved.© 2003 Microsoft Corporation. All rights reserved.This presentation is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, IN THIS SUMMARY.This presentation is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, IN THIS SUMMARY.