We are pleased to declare that Visual Studio (VS) 2010 Service Pack 1 Beta and the .NET Framework 4 KB2162169 Beta will be supported as a “go live” release. This means that this software has met high standards of quality for a pre-release, and we are licensing it for developing and deploying production applications.
VS2010 SP1 Beta and the .NET Framework 4 KB2162169 Beta are licensed for use through June 30, 2011 at which point you’ll need to upgrade to the final release to continue using the product.
You can download VS 2010 SP1 Beta from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=11ea69cb-cf12-4842-a3d7-b32a1e5642e2&displaylang=en. Also you can download .Net Framework 4 update from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=6e3b7759-3df2-4755-8208-44955eee4d4c&displaylang=en.
We hope that you will consider using this beta for “go live” production purposes. As you do, we want to hear from you at our Connect Site if you find any bugs. In order to decide whether or not using this release in a “go live” scenario is right for you, you should carefully understand the terms and limitations of the “go live” license. Start by reading the license terms (during install or on disk afterward), which include the official “go live” licensing terms.
You can refer the blog post states the guidelines which may also help you understand the ways in which we are committed to helping you have a great experience with this release, including the following option: Our Support team is staffed to help you if you encounter problems with this release. If you plan to use it for “go live” please send email to firstname.lastname@example.org so that we can register you for beta level support.
Hope this helps.