Banco de Dados Interno do Windows
"Banco de Dados Interno do Windows (codinome WYukon, às vezes chamado de SQL Server Embedded Edition) é uma variante do SQL Server Express 2005-2012 ou que está incluído no Windows Server 2008 (SQL 2005), no Windows Server 2008 R2 (SQL 2005 ) e Windows Server 2012 (SQL 2012). "
Esse artigo da Wikipédia também diz:
"SQL Server Management Studio Express can be used to connect to an instance of Windows Internal Database using
\.\pipe\MSSQL$MICROSOFT##SSEE\sql\query
(for 2003-2008) or\.\pipe\MICROSOFT##WID\tsql\query
(for 2012) as instance name. But this will only work locally, as Remote Connections cannot be enabled for this edition of SQL Server. Also note that "Windows Authentication" should be used (as opposed to SQL Server Authentication), and administrators seem to have the best results of authenticating successfully when logged on using the same administrative account that was created when Windows was installed."