/fullpaths (Specify Absolute Path in Compiler Output)
By default, errors and warnings that result from compilation specify the name of the file in which an error was found. The /fullpaths option causes the compiler to specify the full path to the file.
To set this compiler option in the Visual Studio development environment
This compiler option is unavailable in Visual Studio.
To set this compiler option programmatically
This compiler option cannot be changed programmatically.