CreateInstanceByContractID failed with error 0x80040154 ( NS_ERROR_FACTORY_NOT_REGISTERED )

[Nagareshwar Talekar]

Hi Guys

  I have written a simple c/c++ program on windows to understand how xpcom works. My objective is to write independent application without using mozilla to connect to xpcom module ( ex : cookiemanager )

Below is the very basic code which initializes xpcom and tries to create instance of  cookiemanager.  I have copied the binary into the C:\Program Files\Mozilla Firefox folder and then executed.  Init xpcom works properly , but when it tries to create instance of cookie manager 
it fails with error   0x80040154 ( NS_ERROR_FACTORY_NOT_REGISTERED ).

Then I called autoregister() method before trying to create  instance of cookie manager...but that did not help...!

I am new bee to xpcom world and trying to resolve this problem since last 2 weeks without any success...

Any links in this direction will be of great help......

Thank you


***************************************************************************************************

#include <stdio.h>

#include <nsxpcom.h>
#include <nsIServiceManager.h>
#include <nsIComponentManager.h>
#include <nsIComponentRegistrar.h>

#include "nsICookieManager.h"

#pragma comment(lib," xpcom.lib")


int main()
{
   nsresult rv;
 
   rv = NS_InitXPCOM2(NULL, nsnull, nsnull);
  
   if ( NS_FAILED(rv) )
   {
      printf("\n Init xpcom failed..");
      return -1;
   }

    printf("\n\n Creating the new instance of cookiemanager component");

    nsIComponentManager *compManager;
    rv = NS_GetComponentManager(&compManager);

    nsICookieManager *cookieManager = NULL;
    rv = compManager->CreateInstanceByContractID("@mozilla.org/cookiemanager;1",
                                                 nsnull,
                                                 NS_GET_IID(nsICookieManager),
                                                 (void**)&cookieManager
                                                 );

   
    if ( NS_FAILED(rv) || cookieManager == nsnull)
    {
        printf("\n CreateInstanceByContractID failed : 0x%x ", rv);
        return -1;
    }

    printf("\n Successfully created the instance....");

   
    // Shutdown XPCOM
    NS_ShutdownXPCOM(nsnull);
 
   return 0;
}


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--
With Regards
Nagareshwar