перечисление криптопровайдеров c++(CryptoAPI)

#include <Windows.h>
#include <iostream>

int main()
{
    DWORD dwIndex = 0;
    DWORD dwType;
    DWORD cbName;
    LPTSTR pszName;

    while (CryptEnumProviders(dwIndex, NULL, 0, &dwType, NULL, &cbName))
    {
        if (!cbName)
            break;

        if (!(pszName = (LPTSTR)LocalAlloc(LMEM_ZEROINIT, cbName)))
        {
            std::cerr << "Error  in LocalAlloc";
            return -2;
        }

        if (!CryptEnumProviders(dwIndex++, NULL, 0, &dwType, pszName, &cbName))
        {
            std::cerr << "Error : CryptEnumProviders";
            return -1;
        }

        std::cout << "--------------------------------" << std::endl;
        std::cout << "Provider name: " << pszName << std::endl;
        std::cout << "Provider type: " << dwType << std::endl;

        LocalFree(pszName);
    }
        dwIndex = 0;
        dwType = 0;
        cbName = 0;
        pszName = NULL;

    while (CryptEnumProviderTypes(dwIndex, NULL, 0, &dwType, NULL, &cbName))
    {
        if (!cbName)
            break;

        if (!(pszName = (LPTSTR)LocalAlloc(LMEM_ZEROINIT, cbName)))
            return -3;

        if (!CryptEnumProviderTypes(dwIndex++, NULL, NULL, &dwType, pszName, &cbName))
        {
            std::cerr<<"CryptEnumProvidersTypes";
            return -4;
        }

        std::cout << "--------------------------------" << std::endl;
        std::cout << "Type name: " << pszName << std::endl;
        std::cout << "Type ID: " << dwType << std::endl;

        LocalFree(pszName);
    }


    system("pause");
    return 0;
}