Unity script opens Windows Explorer. Why?

So, I want to make an Android game and i write a script for touch input with Raycast. When I touch the gameobject the script is activated and works perfectly but opens a new window with my project folder.
It isn’t an error but I want to know how it happens. I test it with unity remote 4.
Here is the script:

var thx1 : GameObject;
var thx2 : GameObject;
var buton1 : GameObject;
var buton2 : GameObject;

var nameOfGameObj : String;

function Start () {
	thx1.SetActive (true);
	thx2.SetActive (false);	

function Update ()
       if (Input.touchCount > 0)
           var ray = Camera.main.ScreenPointToRay (Input.GetTouch(0).position);
           var hit : RaycastHit;
        if (Physics.Raycast (ray, hit)) 
               Debug.Log(" You just hit " + hit.collider.gameObject.name);
        if(hit.collider.gameObject.name == nameOfGameObj)
        	thx1.SetActive (false);
			thx2.SetActive (true);	
			Destroy (buton1);
			Destroy (buton2);


Weird, i cannot see any problems in your script.
This might be a bug from Unity or your operating system.