I'm moving closer to the bottom of the issue. Now I could get the project up at the localhost by configuring IIS virtual directory. But my old IIS 5.1 still won't display any aspx files, default page included. I suspect it's the file/folder permission issue. What you think?...

Let me start by saying I'm a newbie to this .Net development and I'm currently assigned to crack into an old ASP.NET v1.134 website source to rebuild it. The website is part of a solution consisting of 11 projects. The website project where the default.aspx is located, say projA, has a project file called projA.csproj with the url http://localhost/appname/projA.csproj in it. There's another suspicious project file called appname.csproj I found in...