How to save a file while connected to a server in the right dircetory

I want to save a file which stores the position of somethings in the scene. The problem is that it just works fine if i am using it in "Singleplayer" if i want to save a file during "Multiplayer" it doesn´t go into the right directory ,instead it goes into /Appdata/Username/ApplicationName .

this is the code:

import System; import System.IO; import System.Single; public class Saver extends MonoBehaviour { var fileName ="test.txt"; var fw : StreamWriter; var Blocks : GameObject[]; var ainput : String; var world : Transform; var maxsize : int ; function Save() { Blocks= new Array(gameObject.FindGameObjectsWithTag("1")); Debug.Log(Blocks); WriteFile(fileName); }

 function Lade()
 {
     ReadFile(fileName);
     /*for(var k=0;k < Blocks.length;k++)
     {
         
         Network.Instantiate(Blocks[k],Blocks[k].transform.position,Quaternion.identy,0);
     }
     */
 }
 
 
 function WriteFile(fileName : String)
 {
     if (File.Exists(fileName)) 
     {
         Debug.Log(fileName+" already exists.");
         return;
     }
     fw = File.CreateText(fileName);
     for (var i =0;i < Blocks.length;i++)
     {
         
         fw.WriteLine(Blocks[i].GetComponent(Block).id.ToString);
         fw.WriteLine(Blocks[i].transform.position.x);
         fw.WriteLine(Blocks[i].transform.position.y);
         fw.WriteLine(Blocks[i].transform.position.z);
     }
     
     //sw.Flush();
     fw.Close();
 }
 function ReadFile(filepathWithName : String) {
     sr = new File.OpenText(filepathWithName);
     
     ainput = "";
     var i=0;
     while (true) {
         ainput = sr.ReadLine();
         if (ainput == null) {
             
             break;
         }
         
         ainput = sr.ReadLine();
         
         ainput = sr.ReadLine();
         
         ainput = sr.ReadLine();
         
         ainput = sr.ReadLine();
         
         i++;
         maxsize=i;
         
     }
     sr.Close();
     Blocks=new Array(maxsize);
     sr = new File.OpenText(filepathWithName);
     i=0;
     
     var x : float;
     var y : float;
     var z : float;
     var chunk : int;
     ainput = "";
     var curid : int;
     while (true) {
         ainput = sr.ReadLine();
         if (ainput == null) {
             
             break;
         }
         curid=parseInt(ainput);
         
         //Blocks[i].name=ainput;
         ainput = sr.ReadLine();
         x=parseFloat(ainput);
         ainput = sr.ReadLine();
         y=parseFloat(ainput);
         ainput = sr.ReadLine();
         z=parseFloat(ainput);
         ainput = sr.ReadLine();
         chunk = parseInt(ainput);
         networkView.RPC("placeBlock",RPCMode.AllBuffered,curid,Vector3(x,y,z));
         i++;
         
     }
     sr.Close();
 }
 

}