Mixed COM Apartment models

[Christian Skovdal Andersen]

Hi, I have the following problem. From within the same thread I wish to call two components with different threading models. Number one component will instantiate another component and receive events through connection points. This component will have to be Free-threaded or the call to ICOnnectionPoint::Advise() will fail. The other component should instantiate the IShellLink interface to create a shortcut. Take a look at this sample:

    // COINIT\_MULTITHREADED is neccesary because one component is free-threaded
::CoInitializeEx(NULL, COINIT\_MULTITHREADED);

HRESULT hr = S\_OK;
IMulti\* p1 = NULL;

IShellLink \*psl=NULL;
hr = ::CoCreateInstance(CLSID\_ShellLink, NULL, CLSCTX\_INPROC\_SERVER, IID\_IShellLink, (LPVOID\*) &psl);
ASSERT(SUCCEEDED(hr));		

hr = CoCreateInstance(CLSID\_Multi, NULL, CLSCTX\_INPROC\_SERVER, \_\_uuidof(IMulti), (void\*\*)&p1);
ASSERT(SUCCEEDED(hr));		

p1->Release();
psl->Release();

::CoUninitialize();

The problem is that the call to

hr = ::CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (LPVOID*) &psl)

fails when CoInitializeEx has been called with the COINIT_MULTITHREADED parameter Any help will be greatly appreciated Christian Skovdal Andersen