Hello,
See the following link http://msdn.microsoft.com/en-us/library/cc281953.aspx
Excerpt from the documentation :
SQL Server Browser
SQL Server Browser is the name resolution service that provides SQL Server connection information to client computers. This service is shared across multiple SQL Server and Integration Services instances.
The default logon account is NT Authority\Local service and cannot be changed during SQL Server setup. You can change the account after the setup has been completed.
If the startup type is not specified during setup, it is determined as follows:
SQL Server Browser is set to Automatic and running in the installation scenarios described below:
SQL Server failover cluster instance
Named instance of SQL Server where TCP or NP is enabled
Named instance of Analysis Server and is not clustered
This is a SQL Server 2000 upgrade or there is an existing SQL Server 2000 Instance on the machine
If none of the above scenarios apply, and SQL Browser is already installed, the current state of SQL Browser will be maintained.
The startup type is set to Disabled and stopped if there is not an existing SQL Server 2005 or a SQL Server 2008 instance prior to the installation.
George Arama - This posting is provided "AS IS" with no warranties, and confers no rights.