Hi Team, I would like to take this to your notice, as the boost process group object creation is failing, in windows with ${SUBJECT} versions. I've tried 1.66, 1.69-b1-canadiate2 both are working fine. #include <boost/process.hpp> #include <iostream> int main() { try { boost::process::group grp; } catch (std::exception &e) { std::cout << e.what(); } return 0; } *Output* SetInformationJobObject() failed: The handle is invalid. Visual studio version is: 15.8.5 -- Regards, Dinesh manojadinesh.blogspot.com