Start Required Services
The services listed on this wizard page must be running for Microsoft® SQL Server™ to synchronize changes. SQL Server Agent is required for all publications. MS DTC is required for transactional and snapshot publications that allow updatable subscriptions (immediate updating and/or queued updating). Microsoft Message Queuing is required for transactional and snapshot publications that allow queued updating subscriptions and use Microsoft Message Queuing to queue data modifications made at the Subscriber.
The SQL Server Agent icon, MS DTC icon, or Microsoft Message Queuing icon before the service indicates whether the service is currently running or stopped. If the icon is shaded, the state of the service is unknown.
If the required service is not currently running, you can either select the service and have SQL Server start the service automatically when this wizard is finished, or start the service manually later.