Visual Studio locking files while debugging

Question

I have a VS solution containing several projects. While debugging a particular project all the source files are locked by VS. I would like to unlock sources that the debugee

Answer 1

The Edit and Continue feature is preventing you from editing files if the debugger hasn't stopped the program. The simple workaround is Debug + Break All, you should then be able to edit the files, your changes will be immediately effective provided your changes do not violate the restrictions imposed by E+C. This is the most efficient work flow.

The heavy-handed approach is to disable Edit and Continue. Tools + Options, Debugger, Edit and Continue, uncheck the Enable check box.