Unable to load DLL 'winhttp.dll' or one of its dependencies

Hi,

I am trying to build this cbot from the indicator referenced below. 

However, I keep getting the error [Crashed in Initialize with DllNotFoundException: Unable to load DLL 'winhttp.dll'] when I try to run an instance of this cbot. What could be the issue.

Kindly advise.

Joyce.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using cAlgo.API;
using cAlgo.API.Collections;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;

namespace cAlgo.Robots
{
    [Robot(AccessRights = AccessRights.None)]
    public class Swing : Robot
    {
        private Swing xyz;

        protected override void OnStart()
        {
            xyz = Indicators.GetIndicator<Swing>(Bars.ClosePrices, Bars.ClosePrices, 5);
        }

        protected override void OnBar()
        {
            var currentSwingHigh = xyz.SwingHighPlot.Last(0);
            var currentSwingLow = xyz.SwingLowPlot.Last(0);
            var Price = (Symbol.Ask + Symbol.Bid)/2;

            if ((Price > currentSwingLow)||(Price > currentSwingHigh))
            {
                Close(TradeType.Sell, "test");
                if (Positions.Count == 0)
                    ExecuteMarketOrder(TradeType.Buy, SymbolName, 1000, "Bullish", 50, 100);                    
            }
            if ((Price < currentSwingLow)||(Price < currentSwingHigh))
            {
                Close(TradeType.Buy, "test");
                if (Positions.Count == 0)
                    ExecuteMarketOrder(TradeType.Sell, SymbolName, 1000, "Bearish", 50, 100);                    
            }
        }
        
        private void Close(TradeType tradeType, string Label)
        {
            foreach (var position in Positions.FindAll(Label, SymbolName, tradeType))
                ClosePosition(position);
        }


    }
}