I followed the instructions on Web Application Project -site by Scott G. Especially I was interested in howto migrate Visual Web Developer ASP.NET Site Project to Visual Studio 2005 Web Application Project.
According to instructions (Upgrading VS 2005 Web Site Projects to be VS 2005 Web Application Projects) App_Code should be renamed automatically to Old_App_Code. However this doesn't happen. Although my project builds ok I'm not quite sure if it's ok follow the instructions or are they just for migration from VS 2005 only, not from Visual Web Developer ?