Appendix E. Solution and Project File Formats
You will usually edit your solutions' and
projects' properties with the IDE. However, at times
you may want to look inside these files or write a tool that
processes the contents of solution and project files. Fortunately,
most of the properties of a solution and its projects are kept in
simple text files, enabling you to edit these files directly if you
so desire. Make sure you close the solution before editing any of
these files, to avoid VS.NET overwriting your changes the next time
it saves the solution.
The structure of these files is not documented, and manual editing is
not supported. We describe them here because it provides a useful
insight into the inner workings of VS.NET projects and solutions. You
will not normally need to edit these files and should exercise
caution if you attempt to do so.