How to add an ActiveX control to Qt form from custom DLL

Well, I'm trying to achieve the following: add and ActiveX control (AxExpressViewerDll::AxCExpressViewerControl from AutoDesk) to a Qt form. But, there is no way to get the object to load from DLL, for example (the long number is the UUID taken from Visual Studio):

QAxWidget* wmp = new QAxWidget();
wmp->setControl("{55523A67-A054-4064-B88D-0070305C9F95}");

VS picks up the COM object fine, the .dll (AdView.dll) was registered with regsvr32, I even linked the dll directly to the project with the LIBS directive. I even tried this: link

I always get:

CoCreateInstance failure (Class not registered)

QAxBase::se开发者_JAVA百科tControl: requested control {55523A67-A054-4064-B88D-0070305C9F95} could not be instantiated

Any help would be appreciated

answsered after months, but still might be helpful :

Maybe you should take look at the qtbrowser plugin : http://doc.qt.nokia.com/solutions/4/qtbrowserplugin/

Instead of developing and ActiveX and then embedding it into qt, use directly qt. Unless you want your activeX to be available outside qt...