http://www.devart.com/dotconnect/sqlserver/
dotConnect for SQL Server, formerly known as SQLDirect .NET, is an enhanced data provider for SQL Server that builds on ADO.NET technology and SqlClient to present a complete solution for developing SQL Server-based database applications. As part of the Devart database application development framework, dotConnect for SQL Server offers both high performance native connectivity to SQL Server and a number of innovative development tools and technologies.
dotConnect for SQL Server introduces new approaches for designing application architecture, boosts productivity, and leverages database application implementation.
Devart (http://www.devart.com/)