Could someone explain the following to me. 
I created a server control using a control library in visual studio.
To test the server control I created a web application with a simple .aspx 
page. 
When I run/compile the project in VS it creates the server control .dll 
which I would expect but it also creates a .dll for the project.

I don't understand why it is creating a .dll for the project. I can copy 
the aspx file and server control .dll to a different folder and still use 
the .aspx file with out using the Application .dll that Visual Studio 
created to run the test application.

I guess what I am trying to understand is what gets compiled with asp.net?
Do all aspx pages get compiled?
If I create a basic inline coded .aspx page I am able to run it in IIS 
without first compiling it from the command line or using Visual Studio. 
If it is compiled at run time my question is where is the .dll file that I 
expect to be created?

Thanks for your help in advance. Rich