Unable to add SQLDOM parser reference Visual Studio 2015

Question

Hi there,

 

I'm trying to make a SQL Parser based Mini DBMS project with my own front end and no databases like Oracle rather files as database.

 

Now firstly I want to parse input SQL query in tokens then proceed further. For this purpose I wanted to use  SQLDOM parser a.k.a. Microsoft.SqlServer.TransactSql.ScriptDom but unable to add it's reference in Visual Studio 2015.

 

Can anybody tell me how to add it or any other inbuilt library for parsing SQL.