Qt start new application and quit

[TheQuake]

Hello! I posted my issue on stackoverflow: http://stackoverflow.com/questions/2...93521_27736976
I have no idea how to run other application in background from main application. Every time main application is quitting, applications started by it are closed too.

I have tried to use Q_DESTRUCTOR_FUNCTION to run process after main() is processing, without result. I also tried a lot of function:

void closeApp()
{
    QProcess test;
    if(test.startDetached("cmd.exe &"))
        qDebug() << "Running";
    QProcess::execute("cmd.exe");
    system("start cmd.exe &");
    system("cmd.exe &");
    execl("start cmd.exe", "ls", "-r", "-t", "-l", (char *) 0);
    system("cmd.exe");
    FILE* pd = popen("cmd.exe &", "r");
}
 
Q_DESTRUCTOR_FUNCTION(closeApp)

void closeApp()
{
    QProcess test;
    if(test.startDetached("cmd.exe &"))
        qDebug() << "Running";
    QProcess::execute("cmd.exe");
    system("start cmd.exe &");
    system("cmd.exe &");
    execl("start cmd.exe", "ls", "-r", "-t", "-l", (char *) 0);
    system("cmd.exe");
    FILE* pd = popen("cmd.exe &", "r");
}

Q_DESTRUCTOR_FUNCTION(closeApp)

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Is it possible to launch and keep process by running from main application?
edit: ok, the problem was debugger .. outside it all works great with simple QProcess::startDetached("xxx");