The connection string can differ based on the SQL Server version and
provider you use. See the following links for examples of connection
strings:
http://www.connectionstrings.com/?carrier=sqlserver
http://www.connectionstrings.com/?carrier=sqlserver2005

One example for .NET will be:

ConnectionString = "Data Source=ServerIPAddress;Initial
Catalog=DataBase;User Id=Username;Password=Password;"

HTH,

Plamen Ratchev
http://www.SQLStudio.com