If you are using SQL Server Management Studio in SQL 2012 to try to connect to an older SSIS instance (SQL 2008 R2 and earlier) called “SSISServerName”, you will get an error:
Connecting to the Integration Services service on the computer “SSISServerName” failed with the following error: “Class not registered”.
This error can occur when you try to connect to a SQL Server 2005 Integration Services service from the current version of the SQL Server tools. Instead, add folders to the service configuration file to let the local Integration Services service manage packages on the SQL Server 2005 instance.
Not to worry, there is a workaround. It’s not the most logical workaround, but it will work. The SSIS service has a concept of “folders.” Read on for more details.