Now U++ is fully portable. When running TheIDE the first time, it searches and auto installs available MSC compilers and in case of "toolchain download", it also installs its own MinGW. Compiling and running Examples with no problem. My actual U++ installation is unaffected. And TheIDE has been compiled with MinGW! Just to say something, maybe it is necessary in U++ download page to say new Windows users to just run theide.exe or theide32.exe for 32 bits Windows version.