| 
   
Service
  name 
 | 
  
   
Service
  short name 
 | 
  
   
Security
  context 
 | 
  
   
Description
  and dependencies 
 | 
  
   
Default
  startup type 
 | 
  
   
Server
  roles 
 | 
  
   
Required
  (R) or optional (O) 
 | 
 
  | 
   
Microsoft Exchange Active
  Directory Topology 
 | 
  
   
MSExchangeADTopology 
 | 
  
   
Local System 
 | 
  
   
Provides Active Directory topology
  information to Exchange services. If this service is stopped, most Exchange
  services are unable to start. This service has no dependencies. 
 | 
  
   
Automatic 
 | 
  
   
Mailbox, Hub Transport, Client
  Access, Unified Messaging 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange ADAM 
 | 
  
   
ADAM_MSExchange 
 | 
  
   
Network Service 
 | 
  
   
Stores configuration data and
  recipient data on the Edge Transport server. This service represents the
  named instance of Active Directory Lightweight Directory Service (AD LDS)
  that's automatically created by Setup during Edge Transport server installation.
  This service is dependent upon the COM+ Event System service. 
 | 
  
   
Automatic 
 | 
  
   
Edge Transport 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Address Book 
 | 
  
   
MSExchangeAB 
 | 
  
   
Local System 
 | 
  
   
Manages client address book
  connections. This service is dependent upon the Microsoft Exchange Active
  Directory Topology service. 
 | 
  
   
Automatic 
 | 
  
   
Client Access 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Anti-spam
  Update 
 | 
  
   
MSExchangeAntispamUpdate 
 | 
  
   
Local System 
 | 
  
   
Provides the Microsoft Forefront
  Protection 2010 for Exchange Server anti-spam update service. On Hub
  Transport servers, this service is dependent upon the Microsoft
  Exchange Active Directory Topology service. On Edge Transport servers,
  this service is dependent upon the Microsoft Exchange ADAM service. 
 | 
  
   
Automatic 
 | 
  
   
Hub Transport, Edge Transport 
 | 
  
   
O 
 | 
 
  | 
   
Microsoft Exchange Credential
  Service 
 | 
  
   
MSExchangeEdgeCredential 
 | 
  
   
Local System 
 | 
  
   
Monitors credential changes in AD
  LDS and installs the changes on the Edge Transport server. This service is
  dependent upon the Microsoft Exchange ADAM service. 
 | 
  
   
Automatic 
 | 
  
   
Edge Transport 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange EdgeSync 
 | 
  
   
MSExchangeEdgeSync 
 | 
  
   
Local System 
 | 
  
   
Connects to an AD LDS instance on
  subscribed Edge Transport servers over a secure LDAP channel to synchronize
  data between a Hub Transport server and an Edge Transport server. This
  service is dependent upon the Microsoft Exchange Active Directory Topology
  service. If Edge Subscription isn't configured, this service can be disabled. 
 | 
  
   
Automatic 
 | 
  
   
Hub Transport 
 | 
  
   
O 
 | 
 
  | 
   
Microsoft Exchange File
  Distribution 
 | 
  
   
MSExchangeFDS 
 | 
  
   
Local System 
 | 
  
   
Distributes offline address book
  (OAB) and custom Unified Messaging prompts. This service is dependent upon
  the Microsoft Exchange Active Directory Topology and Workstation
  services. 
 | 
  
   
Automatic 
 | 
  
   
Client Access, Unified Messaging 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Forms-Based
  Authentication 
 | 
  
   
MSExchangeFBA 
 | 
  
   
Local System 
 | 
  
   
Provides forms-based authentication
  to Microsoft Office Outlook Web App and the Exchange Control Panel. If
  this service is stopped, Outlook Web App and the Exchange Control Panel won't
  authenticate users. This service has no dependencies. 
 | 
  
   
Automatic 
 | 
  
   
Client Access 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange IMAP4 
 | 
  
   
MSExchangeIMAP4 
 | 
  
   
Network Service 
 | 
  
   
Provides IMAP4 service to clients.
  If this service is stopped, clients won't be able to connect to this computer
  using the IMAP4 protocol. This service is dependent upon the Microsoft
  Exchange Active Directory Topology service. 
 | 
  
   
Manual 
 | 
  
   
Client Access 
 | 
  
   
O 
 | 
 
  | 
   
Microsoft Exchange Information
  Store 
 | 
  
   
MSExchangeIS 
 | 
  
   
Local System 
 | 
  
   
Manages the Exchange Information
  Store. This includes mailbox databases and public folder databases. If this
  service is stopped, mailbox databases and public folder databases on this
  computer are unavailable. If this service is disabled, any services that
  explicitly depend on it will fail to start. This service is dependent on the
  RPC, Server, Windows Event Log, and Workstation services. 
 | 
  
   
Automatic 
 | 
  
   
Mailbox 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Mail Submission
  Service 
 | 
  
   
MSExchangeMailSubmission 
 | 
  
   
Local System 
 | 
  
   
Submits messages from the Mailbox
  server to Exchange 2010 Hub Transport servers. This service is dependent upon
  the Microsoft Exchange Active Directory Topology service. 
 | 
  
   
Automatic 
 | 
  
   
Mailbox 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Mailbox
  Assistants 
 | 
  
   
MSExchangeMailboxAssistants 
 | 
  
   
Local System 
 | 
  
   
Performs background processing of
  mailboxes in the Exchange store. This service is dependent upon the Microsoft
  Exchange Active Directory Topology service. 
 | 
  
   
Automatic 
 | 
  
   
Mailbox 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Mailbox
  Replication Service 
 | 
  
   
MSExchangeMailboxReplication 
 | 
  
   
Local System 
 | 
  
   
Processes mailbox moves and move
  requests. This service is dependent upon the Microsoft Exchange Active
  Directory Topology and Net.Tcp Port Sharing service. 
 | 
  
   
Automatic 
 | 
  
   
Client Access 
 | 
  
   
O 
 | 
 
  | 
   
Microsoft Exchange Monitoring 
 | 
  
   
MSExchangeMonitoring 
 | 
  
   
Local System 
 | 
  
   
Allows applications to call the
  Exchange diagnostic cmdlets. This service has no dependencies. 
 | 
  
   
Manual 
 | 
  
   
All 
 | 
  
   
O 
 | 
 
  | 
   
Microsoft Exchange POP3 
 | 
  
   
MSExchangePOP3 
 | 
  
   
Network Service 
 | 
  
   
Provides POP3 service to clients.
  If this service is stopped, clients can't connect to this computer using the
  POP3 protocol. This service is dependent upon the Microsoft
  Exchange Active Directory Topology service. 
 | 
  
   
Manual 
 | 
  
   
Client Access 
 | 
  
   
O 
 | 
 
  | 
   
Microsoft Exchange Protected
  Service Host 
 | 
  
   
MSExchangeProtectedServiceHost 
 | 
  
   
Local System 
 | 
  
   
Provides a host for several
  Exchange services that must be protected from other services. This service is
  dependent upon the Microsoft Exchange Active Directory Topology service. 
 | 
  
   
Automatic 
 | 
  
   
Hub Transport, Client Access 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Replication
  Service 
 | 
  
   
MSExchangeRepl 
 | 
  
   
Local System 
 | 
  
   
Provides replication functionality
  for mailbox databases on Mailbox servers in a database availability group
  (DAG) and database mount functionality for all Mailbox servers. This service
  is dependent upon the Microsoft Exchange Active Directory Topology service. 
 | 
  
   
Automatic 
 | 
  
   
Mailbox 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange RPC Client
  Access 
 | 
  
   
MSExchangeRPC 
 | 
  
   
Network Service 
 | 
  
   
Manages client RPC connections for
  Exchange. This service is dependent upon the Microsoft Exchange Active
  Directory Topology service. 
 | 
  
   
Automatic 
 | 
  
   
Mailbox, Client Access 
 | 
  
   
O (Mailbox), R (Client Access) 
 | 
 
  | 
   
Microsoft Exchange Search Indexer 
 | 
  
   
MSExchangeSearch 
 | 
  
   
Local System 
 | 
  
   
Drives indexing of mailbox
  content, which improves the performance of content search. This service is
  dependent upon the Microsoft Exchange Active Directory Topology and
  Microsoft Search (Exchange Server) services. 
 | 
  
   
Automatic 
 | 
  
   
Mailbox 
 | 
  
   
O 
 | 
 
  | 
   
Microsoft Exchange Server
  Extension for Windows Server Backup 
 | 
  
   
WSBExchange 
 | 
  
   
Local System 
 | 
  
   
Enables Windows Server Backup
  users to back up and recover application data for Microsoft Exchange. This
  service has no dependencies. 
 | 
  
   
Manual 
 | 
  
   
Mailbox 
 | 
  
   
O 
 | 
 
  | 
   
Microsoft Exchange Service Host 
 | 
  
   
MSExchangeServiceHost 
 | 
  
   
Local System 
 | 
  
   
  
 | 
  
   
Provides a host for several
  Exchange services. On internal server roles, this service is dependent upon
  the Microsoft Exchange Active Directory Topology service. On Edge
  Transport servers, this service is dependent upon the Microsoft Exchange ADAM
  service. 
 | 
  
   
Automatic 
 | 
  
   
All 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Speech Engine 
 | 
  
   
MSSpeechService 
 | 
  
   
Network Service 
 | 
  
   
Provides speech processing
  services for Unified Messaging. This service is dependent upon the Windows
  Management Instrumentation (WMI) service. 
 | 
  
   
Automatic 
 | 
  
   
Unified Messaging 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange System
  Attendant 
 | 
  
   
MSExchangeSA 
 | 
  
   
Local System 
 | 
  
   
Forwards directory lookups to a
  global catalog server for legacy Outlook clients, generates e-mail addresses
  and OABs, updates free/busy information for legacy clients, and maintains
  permissions and group memberships for the server. If this service is
  disabled, any services that explicitly depend on it will fail to start. This
  service is dependent on the RPC, Server, Windows Event Log, and Workstation
  services. 
 | 
  
   
Automatic 
 | 
  
   
Mailbox 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Throttling 
 | 
  
   
MSExchangeThrottling 
 | 
  
   
Network Service 
 | 
  
   
Limits the rate of user
  operations. This service is dependent upon the Microsoft Exchange Active
  Directory Topology service. 
 | 
  
   
Automatic 
 | 
  
   
Mailbox 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Transport 
 | 
  
   
MSExchangeTransport 
 | 
  
   
Network  
 | 
Provides SMTP server and transport
  stack. On Hub Transport servers, this service is dependent upon the Microsoft
  Exchange Active Directory Topology service. On Edge Transport servers,
  this service is dependent upon the Microsoft Exchange ADAM service. 
 | 
  
   
Automatic 
 | 
  
   
Hub Transport, Edge Transport 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Exchange Transport Log
  Search 
 | 
  
   
MSExchangeTransportLogSearch 
 | 
  
   
Local  
 | 
Provides remote search capability
  for Microsoft Exchange Transport log files. On Hub Transport servers, this
  service is dependent upon the Microsoft Exchange Active Directory
  Topology service. On Edge Transport servers, this service is dependent upon
  the Microsoft Exchange ADAM service. 
 | 
  
   
Automatic 
 | 
  
   
Hub Transport, Mailbox, Edge
  Transport 
 | 
  
   
O 
 | 
 
  | 
   
Microsoft Exchange Unified
  Messaging 
 | 
  
   
MSExchangeUM 
 | 
  
   
Local  
 | 
Enables Microsoft Exchange Unified
  Messaging features. This allows voice and fax messages to be stored in
  Exchange and gives users telephone access to e-mail, voice mail, calendar,
  contacts, or an auto attendant. If this service is stopped, Unified Messaging
  isn't available. This service is dependent upon the Microsoft
  Exchange Active Directory Topology and the Microsoft Exchange Speech
  Engine service. 
 | 
  
   
Automatic 
 | 
  
   
Unified Messaging 
 | 
  
   
R 
 | 
 
  | 
   
Microsoft Search (Exchange Server) 
 | 
  
   
msftesql-Exchange 
 | 
  
   
Local  
 | 
This is a Microsoft
  Exchange-customized version of Microsoft Search. This service is dependent on
  the RPC service. 
 | 
  
   
Manual 
 | 
  
   
Hub Transport, Mailbox 
 | 
   |