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Topic created on: September 14, 2007 07:00 CDT by MohammadHosein  .
hey people
this may sound a bit weired , well the world itself is a weired place .
i need to know if there is "any" way to use an Activex without registration , without touching registry and regsvr32 and underlaying APIs ? i am old and lazy to dig into COM crap , any of you ever thought of something like this ? is there any special pair of loadlibrary/getprocaddress to load a copy of target object and give me a handle ?
Well yeah it would be nice to be able to instantiate a COM object without registering it, however that kind of goes against the whole COM architecture. Using this Matt Pietrek article you may be able to try to load the object, determine the address of a function you want to call and then try to call that function, but there are a few roadblocks you will run into.
Defintely let us know if you make any headway.
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MediaPlayerClassic does something like that.
http://guliverkli.svn.sourceforge.net/viewvc/guliverkli/trunk/guliverkli/src/apps/mplayerc/FakeFilterMapper2.cpp?view=markup
However, if you know the class' GUID, you can call DllGetClassObject directly to get its interface pointer.
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Try to experiment with the following COM API function: CoRegisterClassObject(...).
It exists even on Win2K, and it worked for me since then. In order to get a picture how it can be used, please find the class snippet (just for illustration, this is very old code) below the message text that I used to register custom URL schema.
This is, IMHO, extremely elegant solution, the only quirk is that you have to implement your own IClassFactory interface (just once, you can easily create a template), since this function needs it (and thats what you get when you call CoGetClassObject()). The good side of this is that your class factory can generate a lot of new instances you need.
If you specify REGCLS_MULTIPLEUSE and CLSCTX_LOCAL_SERVER this will implicitly set CLSCTX_INPROC_SERVER behavior, thus any application knowing your CLSID can get class factory and instantiate desired object; otherwise, specify REGCLS_SINGLEUSE, and only the caller process has access to the defined class factory, please see the Platform SDK documentation. On the end, do not forget to call CoRevokeClassObject().
HTH,
^VLaaD^
"En una pelicula de terror"
///// SNIP ////////////////////////////////////////////
BOOL CIPFactory::Initialize(LPCWSTR pcwszProtocol)
{
tInitialized=FALSE;
ulRef=0;
clsidProtocol=CLSID_NULL;
pwszScheme=NULL;
dwCookie=0;
if(CoCreateGuid(&clsidProtocol)!=S_OK)
return FALSE;
HRESULT hr;
if((hr=CoRegisterClassObject( clsidProtocol,
(IClassFactory*)this,
CLSCTX_INPROC_SERVER,
REGCLS_MULTI_SEPARATE,
&dwCookie))!=S_OK) {
clsidProtocol=CLSID_NULL;
return FALSE;
}
IInternetSession* pInternetSession;
pInternetSession=NULL;
if(CoInternetGetSession( 0,
&pInternetSession,
0)!=S_OK) {
clsidProtocol=CLSID_NULL;
return FALSE;
}
IClassFactory* pClassFactory;
pClassFactory=NULL;
if(CoGetClassObject( clsidProtocol,
CLSCTX_SERVER,
NULL,
IID_IClassFactory,
(LPVOID*)&pClassFactory)!=S_OK) {
pInternetSession->Release();
clsidProtocol=CLSID_NULL;
return FALSE;
}
hr=pInternetSession->RegisterNameSpace( this,
clsidProtocol,
pcwszProtocol,
0,
NULL,
0);
pInternetSession->Release();
pClassFactory->Release();
if(hr!=S_OK) {
clsidProtocol=CLSID_NULL;
return FALSE;
}
if((pwszScheme=new WCHAR[wcslen(pcwszProtocol)+1])==NULL) {
clsidProtocol=CLSID_NULL;
return FALSE;
}
wcscpy(pwszScheme, pcwszProtocol);
tInitialized=TRUE;
IP_TRACE(_T("IPFactory(%08X)::Initialize()"), this);
return TRUE;
}
///// SNIP ////////////////////////////////////////////
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> i need to know if there is \"any\" way to use an Activex without registration , without touching registry and regsvr32 and underlaying APIs ?
yes, there is a way:
http://boxedapp.com/
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