Add full text index facility to SQL Server instance Can anyone help me to add full text index facility to a SQL Server instance? FYI  it is cluster environment, SQL Server 2012 Developer Edition.

Running select serverproperty('isfulltextinstalled') returns value 0.
When you install a clustered instance, the fulltext components are installed by default and it is not possible to de-select them. If you don't have fulltext installed, you're in big trouble. Are you sure the components are not there? What does SELECT SERVERPROPERTY('IsFulltextInstalled') return? If it returns false, I'm afraid you will have to reinstall this instance. I had the same thing happening to me once and there was no way other than reinstalling from scratch.