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Essential Downloads Data and Modeling Highlights

Download the latest versions of Microsoft's data development technologies.

Code Samples, Tools, and Utilities

Get the latest code samples, tools and utilities for Data Platform Development technologies including the Entity Framework, Data Services, and SQL Server Modeling. Additional samples can be searched and browsed on the code gallery home page.

Download Visual Studio 2010 Today!

Microsoft Visual Studio 2010 is a cost effective way to maintain existing applications and target the latest Microsoft platforms while increasing development productivity. Download the Visual Studio 2010 trial today!

MDAC Downloads

This page offers the most recent downloads of the MDAC/WDAC technologies such as OBDC and OLEDB. Previous versions are also available through the link at the bottom of the page.

Data Development Downloads

Download Microsoft JDBC Driver 4.0 for SQL Server CTP
This community technology preview of the next version of the SQL Server JDBC Driver contains support for features that were added in SQL Server 2008
Tuesday, Dec 13
Microsoft SQL Server JDBC Driver 3.0
The SQL Server JDBC Driver 3.0 provides access to SQL Server 2008 R2, SQL Server 2008, SQL Server 2005 and SQL Server 2000 from any Java application, application server, or Java-enabled applet. This is a Type 4 JDBC driver that provides database connectivity through the standard JDBC application program interfaces (APIs) available in Java Platform, Enterprise Edition 5 and 6.
Sunday, Apr 25
Reactive Extensions (Rx) downloads
Reactive Extensions (Rx) is a library to compose asynchronous and event-based programs using observable reactive data sequences and LINQ-style query operators.
Friday, Jan 14
Microsoft SQL Server Migration Assistant for Access v4.2
Microsoft SQL Server Migration Assistant (SSMA) is a toolkit that dramatically cuts the effort, cost, and risk of migrating from Access to SQL Server 2005, SQL Server 2008, SQL Server 2008 R2 and SQL Azure.
Thursday, Aug 12
Microsoft SQL Server Migration Assistant for MySQL v1.0
Microsoft SQL Server Migration Assistant (SSMA) is a toolkit that dramatically cuts the effort, cost, and risk of migrating from MySQL to SQL Server 2005, SQL Server 2008, SQL Server 2008 R2 and SQL Azure.
Thursday, Aug 12
Microsoft Drivers for PHP for SQL Server 2.0
The Microsoft Drivers for PHP for SQL Server provide connectivity to Microsoft SQL Server from PHP applications. In addition to some important bug fixes for the existing SQLSRV driver, version 2.0 release adds support for PDO with a new PDO_SQLSRV driver.
Thursday, Aug 5
Entity Framework Feature CTP 4
This CTP is a an early preview of the Code First Programming Model and Productivity Improvements for Entity Framework 4.
Thursday, Jul 15
SQL Server 2008 R2 Trial
SQL Server 2008 R2 delivers several breakthrough capabilities that will enable your organization to scale database operations with confidence, improve IT and developer efficiency, and enable highly scalable and well managed Business Intelligence on a self-service basis for your users.
Friday, Nov 6
SQL Server Driver for PHP version 2.0 CTP1 – April 2010
The SQL Server Driver for PHP is a PHP 5 extension that allows for the reading and writing of SQL Server data from within PHP scripts. The extension provides a native procedural and PDO interfaces for accessing data in all editions of SQL Server 2005 and later including SQL Azure.
Sunday, Apr 25
ADO.NET Data Services Update for .NET Framework 3.5 SP1
The ADO.NET Data Services framework consists of patterns and libraries that enable the creation and consumption of OData services for the web. This update to the Microsoft .NET Framework 3.5 SP1 provides additional features which extend the functionality provided in version 1.0 of the ADO.NET Data Services framework.
Monday, Feb 1
ADO.NET Entity Framework Feature CTP2
This CTP is a an early preview of future features of the ADO.NET Entity Framework. Note: These features are not part of Visual Studio 2010 and .NET 4
Tuesday, Nov 10
ADO.NET Data Services v1.5 CTP2
ADO.NET Data Services v1.5 CTP2 is the second tech preview release of the next version of ADO.NET Data Services. This release (v1.5) will target the .NET Framework 3.5 SP1 & Silverlight 3 platforms and provide new client and server side features for data service developers.
Tuesday, Sep 1
Visual Studio 2008 and .NET Framework 3.5 SP1 Downloads
The RTM of Visual Studio 2008 SP1 and the .NET Framework 3.5 SP1 marks the entry of the ADO.NET Entity Framework and ADO.NET Data Services (aka project Astoria) as part of the overall .NET/Visual Studio product install.
Saturday, Sep 13
Microsoft Project Code Named "Velocity" CTP 3
"Velocity" is a distributed in-memory application cache platform for developing scalable, high-performance applications. "Velocity" can be used to cache any common language runtime (CLR) object and provides access through simple APIs. The key aspects of "Velocity" are distributed cache performance, scalabily, and availability. Download CTP3 and try it today.
Wednesday, Apr 8
SQL Server Driver for PHP Version 1.0 Cumulative Update - April 2009
Download the SQL Server Driver for PHP Version 1.0 Cumulative Update - April 2009.
Tuesday, Jul 29