how to read QByteArray and run as Detached process in qt? -

i'm trying run hardcoded base64 .exe file in detached process.

what i'm trying is:

void read(qstring file){     qprocess process;     process.startdetached(file);  } int main(int argc, char *argv[]) {     qcoreapplication a(argc, argv);     qbytearray exe = qbytearray::frombase64("tvqqaamaaaaeaaaa...."); //base64 of .exe file      qstring s = exe.data();     qdebug() << s ;     read(s);     return a.exec(); } 

not working, debug shows : "mz?"