
Installing Analysis Services Side-by-Side with an Earlier Version
SQL Server 2000 Analysis Services does not support named instances. Therefore, on a computer that is running instances of both SQL Server 2000 Analysis Services and SQL Server 2005 Analysis Services, the instance of SQL Server 2000 Analysis Services must always be the default instance. In this case, SQL Server Setup permits only the installation of named instances of SQL Server 2005 Analysis Services. SQL Server 2000 Analysis Services can continue to run as the default instance, side-by-side with named instances of SQL Server 2005 Analysis Services.
For more information, see How to: Install Analysis Services Side-by-Side with an Earlier Version.
Modifying a Side-by-Side Installation