On K. Scott Allen’s blog, you can find a really good description of how the build process for ASP.NET projects has changed from 1.0/1.1 to 2.0.
One of the adjustments to make when moving from ASP.NET 1.1 to 2.0 is how to produce debug and release builds.
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Here is the most important concept to come to terms with in 2.0: Visual Studio 2005 knows nothing about compiling a web application. In 1.1 VS built the code-behind and ASP.NET built the web forms. In 2.0 Visual Studio 2005 delegates all compilation responsibilities to the ASP.NET platform.
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Jump here for the full article, it neatly describes what has changed and how it works. He doesn’t go into why it changed, that’s the part I don’t get. What’s the advantage of the new build method? In the end, as long as I can get FinalBuilder to build it, I’ll be happy.