Where are all those SQL Server sessions from?
After launching SSMS (2008 R2) on my dev machine, which I launch with "D:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\Ssms.exe" -nosplash -S localhost -d testdata without doing anything, in Activity Monitor I observe some sessions (TestData is my default database) Details of session 51: select @@spid; select SERVERPROPERTY('ProductLevel'); Details of session 52: DBCC INPUTBUFFER(52) Details of session 53: SELECT CAST(serverproperty(N'Servername') AS sysname) AS [Name], 'Server[@Name=' + quotename(CAST( serverproperty(N'Servername') AS sysname),'''') + ']' + '