I have Visual Studio web developer Addison , Visual Basic 2005 Express Edition, Visual C# 2005 Express Edition and Visual Web Developer 2005 Express Edition installed on my system.
My operative system is a Windows 7
When I start the installation of "LINQ Preview (May 2006).msi", I get the next error message: "Cannot find a valid Product to install LINQ with". I click in the Accept button and get a second message: "You must have either Visual Studio 2005, Visual Basic 2005, Visual C# 2005 or Visual Web Developer 2005 installed before installing Microsoft .NET LINQ Preview (May 2006) Do you want to download Visual Studio 2005 Express Editions now?"