QAxObject *act = new QAxObject("V77.Application");
    connect(act,SIGNAL(exception(int,QString,QString,QString)),this,SLOT(err(int,QString,QString,QString)));
    QString path = trUtf8("C:\\1");
    QString user = "user";
    QString pass = "123";
    QString connectString = "/D"+path+" /N"+user+" /P"+pass;
    qDebug()<<act->dynamicCall("Initialize(const QVariant&, const QVariant&, const QVariant&)",
                               act->dynamicCall("RMTrade"),
                               connectString,
                               "no_splash_show");
    QAxObject *query = act->querySubObject("NewObject(QString)", trUtf8("Запрос"));

QVariant(bool, true) 
QAxBase::dynamicCallHelper: NewObject(QString): No such property in {63112d80-94f0-11d2-9f39-008048da120f} [unknown]
	Candidates are:

Signals:
void exception(int code, QString source, QString disc, QString help);
void propertyChanged(QString name);
void signal(QString name, int argc, void* argv);
Properties:
QString objectName;
QString control;

QAxObject *res = query->querySubObject("Execute(QString)", trUtf8("ВЫБРАТЬ * ИЗ Справочник.Справочник1"));

cmd
> cd /d "C:\Program Files\1cv82\8.2.15.294\bin\"
> regsvr32 -i comcntr.dll