Ok, boost 1.51.0 release being targeted at monday I will try with the new version before using Boost.Process 0.5. I just finished reading the doc, here are quick remarks (so don't take them as strong critics): 1. It appears simple to understand by reading the doc, except the suggested need for macros (but I am not a specialist so maybe I'm missing knowledge here). 2. I suspect that there are specific reasons why the 'child' class isn't designed in the same way than std::thread? I think it might have been discussed before but I don't remember. Is there a rational somewhere about this? 3. Why do I need to repeat the executable name if I provide the full command line? Can I just provide the command line? 4. I see that some example use lambdas, so C++11 enabled. Why not use auto too then? I think some of the macro use (related to return types in particular) can be removed by using auto. Obviously that's true only if the example are meant to use C++11. 5. It is not clear to me what you mean by "resources" in the "Cleaning up resources" part? I just read this and I'm guessing that it's for solving the problem of zombie process? http://en.wikipedia.org/wiki/SIGCHLD Otherwise good work. Joel Lamotte