http://youtu.be/Ee3EtYb8d1o?t=50m29s

Visual Studio has the option to use as a working directory at: w:\handmade\data .
However, once we close Visual Studio, the options are deleted. And I don't see Casey saving the solution. So I wonder, how does one cause the solution options to persist?

The options are stored in the .sln file. Visual Studio _should_ have asked you to save the .sln file when you exited - I believe that is shown on the stream in Day 001?

- Casey

I believe debugging options like working directory is saved in .suo file, not .sln. But this .sou file is automatically generated next to .sln file when .sln file is created.

While debugging, I frequently reach a point by pressing f10 where the Debugger throws a message box: "There is no source code for the current location". How can I correct that?

For example in the third day there is a part where Casey steps over the PostQuitMessage(0) Call and after exiting the WindProc() the "There is no source code for the current location" message appears.