Free expression blend software for windows

We are pleased to present the very first Beta version of Expression Blend (formerly known as Expression Interactive Designer), that targets Microsoft .NET Framework 3.0. We are very excited to receive your feedback on the new user experience this Beta provides compared to our previous CTP releases.
Your input is essential during our development cycle to help us make a better product. Please send your feedback to us via our discussion forum or our product feedback center as you encounter bugs or usability issues, or if you simply want to request a feature. Have fun designing, and we look forward to your continued feedback!
If you are new to Expression Blend and are building user experiences for .NET 3.0 applications on the Windows platform, this is a great place to start. The betas are a great way to experiment and begin familiarizing yourself with the tool. We hope you will try the innovative features in Expression Blend, such as rich 2D and 3D graphics, animation, dynamic layout, data binding, style and template editing, and resource management.
We also recommend that you explore the included documentation and sample projects. Additionally, some knowledge of .NET 3.0 programming may help you when working with the beta. For more information about the .NET Framework 3.0, see the .NET Framework 3.0 Development section of the Windows Software Development Kit. Please also refer to 3rd-party books that are good resources for learning WPF.
In order to edit code, you will also need a free copy of a Microsoft Visual Studio 2005 Express edition from the Visual Studio Express Web site (choose either the Visual Basic or C# edition).
Installation Instructions
Installing on Windows Vista:
- Download and install Expression Blend.
- When prompted to enter a product key, just click the Continue button for a 30-day trial from the first installation of Beta 1, or if you want to enable the 180-day license, please enter the product key as follows: YCQGP-CFRGF-933KK-P6YKC-YFHMP.
- Download and install Visual Studio 2005 Express (Visual Basic or C#).
Installing on Windows XP SP2:
- Uninstall all previous versions of Windows Presentation Foundation, Windows Communication Foundation, MSXML 6.0 and SDK, and Expression Blend (or Interactive Designer) using Add/Remove Programs in Control Panel.
- Please be sure to install .NET Framework 3.0 first before attempting to install Expression Blend.
- Download and install Expression Blend.
- When prompted to enter a product key, just click the Continue button for a 30-day trial from the first installation of Beta 1, or if you want to enable the 180-day license, please enter the product key as follows: YCQGP-CFRGF-933KK-P6YKC-YFHMP.
- Download and install Visual Studio 2005 Express (Visual Basic or C#).

With Expression you can write and draw on a web page,to highlight the vital issues. Save or send the markedup page to a person you know, without interrupting your browsing, or sending an email. To make an urgent point, flash a private message on their screen. You can also hold a live page conference. You see what they highlight, they see what you circle. Discuss the information in real time, attach notes and chat.

Add evaluation of mathematical expressions to yourapplications, quickly and easily. Supports 8 operators(including parenthesis), 10 mathematical functions,unlimited number of user-defined variables and providescomplete error handling support.