Visualstudio macro - enumerating all projects properties

I have a huge solution with many projects, I would like to set a particular propertie (for example warning level) for each of the projects. C开发者_如何学运维an this be done with a macro?

The DTE2 Interface looks like it might provide access to that. However, I suspect it might be simpler to write some kind of script (e.g., with awk, perl, ruby, python, etc.) that processes the files. For example, if dealing with C/C++ projects, it could spin through the .vcproj files and add/change lines as needed.