load images into an array runtime.

Hello fellas , i am trying to make a slideshow of images in which the slideshow should show the images as the new images gets stored in the folder , these new images comes when a new screenshot is captured. these screenshots are stored in 'Resources/Screenshots' directory.

i have used the following code to load the images from the 'Resources/Screenshots' directory this code works well when run in editor , but when i create an exe it doesn't work , it doesn't take the new images from the 'Resources/Screenshot'

 using UnityEngine;
 using System.Collections;
 using System.IO;
 [RequireComponent (typeof (GUITexture))]
 public class SlideShow : MonoBehaviour
 {
     //public Texture2D[] slides;
     public float changeTime = 10.0f;
     private int currentSlide = 0;
     private float timeSinceLast = 1.0f;
     public long screenshotCount = 0;
 
     //An array of Objects that stores the results of the Resources.LoadAll() method
     private Object[] objects;
     //Each returned object is converted to a Texture and stored in this array
     public Texture[] textures;
     //With this Material object, a reference to the game object Material can be stored
     private Material goMaterial;
 
 
 
     void Start()
     {
         currentSlide = 0;
     }
     
     void Update()
     {
 
         // Start SlideShow
         if (Input.GetKeyDown("f10"))
         {
                 //Load all textures found in the folder, that is placed inside the resources folder
                 this.objects = Resources.LoadAll("Screenshots", typeof(Texture));
                 
                 //Initialize the array of textures with the same size as the objects array
                 this.textures = new Texture[objects.Length];
                 
                 //Cast each Object to Texture and store the result inside the Textures array 
                 for(int i=0; i<objects.Length;i++)
                 {
                     this.textures[i] = (Texture)this.objects[i];
                 }
 
                 guiTexture.texture = textures[currentSlide];
                 guiTexture.pixelInset = new Rect(-textures[currentSlide].width/2 , -textures[currentSlide].height/2, textures[currentSlide].width , textures[currentSlide].height);
                 //currentSlide++;
 
         }
 
 
 
         if(timeSinceLast > changeTime && currentSlide < textures.Length)
         {
                 guiTexture.texture = textures[currentSlide];
                 guiTexture.pixelInset = new Rect(-textures[currentSlide].width/2, -textures[currentSlide].height/2, textures[currentSlide].width, textures[currentSlide].height);
                     timeSinceLast = 0.0f;
                     currentSlide++;
                     
         }
                 
         if(currentSlide == textures.Length)
         {
             currentSlide = 0;
         }
             
             timeSinceLast += Time.deltaTime;
     }
 }

if anyone can help me with this then Please let me know how can i solve this. or what is the other way to load the images runtime. -Thanks in advance