C / C++ / MFC

	HANDLE          storeHandle = NULL;
	PCCTL_CONTEXT	pCTLContext = NULL;

	wstring textToFind;
	wstring storeName;

	if (argc != 3 )
	{
		//displayUsage();
		wcout << TEXT("argc = ")<< argc << endl;
		exit(-1);
	}

	storeName = argv[1];
	textToFind = argv[2];

	DWORD buffSize = 0;

	// Open a system certificate store.
	if (storeHandle = CertOpenSystemStore( NULL, storeName.c_str()))
	{
		 wcout << TEXT("The ") << storeName.c_str() << TEXT(" store has been opened. \n");
	} else {
		 wcout << TEXT("The store was not opened.\n");
		 exit(1);
	}

	//
	//
	//
	PCCTL_CONTEXT prevCTLContext = NULL;

	pCTLContext = CertFindCTLInStore( storeHandle, 
				X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, 
				0, 
				CERT_FIND_SUBJECT_STR,
				//CERT_FIND_KEY_IDENTIFIER,
				textToFind.c_str(),
				prevCTLContext);
	// show some info

	if (pCTLContext != NULL)
	{
// I never get here.
	} else {
		wcout << TEXT("Unable to find cert with subject of '")<< textToFind.c_str() << TEXT("'") << endl;
	}
	//
	// finish up
	//
	if (!CertCloseStore(storeHandle, 0))
	{
		wcerr <<TEXT("Failed CertCloseStore\n");
		exit(1);
	}