Exchange Server 2003 Default File Locations & Services

Default File Locations
Exchange Server 2003 setup creates the following folder structure during installation.

Folder	Description
Address	Stores dynamic-link libraries (DLLs) for e-mail address proxies. The default installation contains DLLs for Microsoft Mail for PC Networks, Lotus cc:Mail, Lotus Notes, Novell GroupWise, SMTP, and X.400 e-mail address generators.
Bin	Stores components for Exchange.
Conndata	Stores supports the MS Mail connector.
Exchweb	Stores Outlook Web Access components.
ExchangeServer_servername	Stores data for MSSearch and context indexing support
Mailroot	Contains a folder for each SMTP virtual server that you configure on your server.
Mdbdata	Stores database files and their associated transaction log files
Mtadata	Stores configuration information, template database, and log files for the MTA.
OMA	Stores Outlook Mobile Access components
Res	Stores logs for the Event Viewer and the Windows System Monitor.
Schema	Stores the OLE DB schema.
Srsdata	Stores data for the Site Replication Service.
servername.log	Stores log files for the message-tracking feature of Exchange System Manager.

Default Exchange 2003 Services
Here are the default services that are installed in a typical Exchange 2003 installation.

Exchange 2003 Service	Description
Microsoft Exchange Event	Monitors folders and fires events for server applications that are compatible with Exchange Server 5.5.
Microsoft Exchange IMAP4	Provides Internet Message Access Protocol (IMAP4) Services to clients.
Microsoft Exchange Information Store	Manages the Microsoft Exchange Information Store. This includes mailbox stores and public folder stores.
Microsoft Exchange Management	Provides Exchange management information using Windows Management Instrumentation (WMI).
Microsoft Exchange MTA Stacks	Provides Microsoft Exchange X.400 services. Exchange X.400 services are used for connecting to Exchange 5.5 servers, and by other connectors (custom gateways).
Microsoft Exchange POP3	Provides Post Office Protocol version 3 (POP3) Services to clients.
Microsoft Exchange Routing Engine	Provides topology and routing information to Exchange Server 2003 servers.
Microsoft Exchange Site Replication Service	Provides a local Exchange Server 5.5 compatible directory for coexistence with Exchange Server 5.5 servers.
Microsoft Exchange System Attendant	Provides monitoring, maintenance, and Active Directory lookup services for Microsoft Exchange.
Microsoft Search	Creates full-text indexes on content and properties of structured and semi-structured data to allow fast searches.