How to make self-registering COM server (exe) with C++ -

i'm complete beginner in com , in process of grasping ins , outs of it. right there problem i'm trying solve (it's part of test assignment).

what need make self-registering exe com server in native c++, i.e. executable register com-object on execution. of examples find tell of implementing server in dll , using regsvr32 on it, need self-registering exe.

can explain how do that?

upd: okay, little more: doesn't work. here's snippet:

int _tmain(int argc, _tchar* argv[]) {     iclassfactory *factory = new isimpleserverfactory();     dword classtoken;      ::coinitialize(null);     coregisterclassobject(         iid_isimpleserver,          factory,          clsctx_local_server,          regcls_multipleuse,          &classtoken);      isimpleserver *pisimpleserver = null;      hresult hr = cocreateinstance(         clsid_csimpleserver,          null,          clsctx_local_server,          iid_isimpleserver,         (void **)&pisimpleserver);         //<<<<<<<<<<<<<<<< fails      if(succeeded(hr))         printf("instantiation successful\n");      if(pisimpleserver != null)         pisimpleserver->release();      std::cin.ignore();     corevokeclassobject(classtoken);     ::couninitialize();     return 0; } 

the thing coregisterclassobject succeds, cocreateinstance tells me object not registered. did wrong? (i unified code same module debugging 'cause didn't work in different apps).

upd2: peter huene helped 1 - had use clsid instead of iid. works in-process. when called out-of-process (from standalone client) cocreateinstance never returns. why be?