diff --git a/matlab/AnalyseComputationalEnviroment.m b/matlab/AnalyseComputationalEnviroment.m
index 0028bcbba..3453e1cc0 100644
--- a/matlab/AnalyseComputationalEnviroment.m
+++ b/matlab/AnalyseComputationalEnviroment.m
@@ -1,5 +1,12 @@
 function [ErrorCode] = AnalyseComputationalEnviroment(DataInput)
-% Input/Output description:
+
+% DESCRIPTION
+
+% This function is used to check the user computational request.
+% If no error happen the function return 0.
+
+
+% INPUT/OUTPUT description:
 %
 % DataInput is the strcture option_.parallel, with the follow fields:
 %
@@ -37,10 +44,17 @@ function [ErrorCode] = AnalyseComputationalEnviroment(DataInput)
 %
 %   Value 3:    The remote computer is unreachable!!!
 %
-%   Value 4:    The user name and/or password is/are incorrect on the
-%               remote computer!
+%   Value 4:    The fields user name and/or password are/is empty!
+%
+%   Value 5:    Remote Drive and/or Remote Folder not exist!
+%
+%   Value 6:    It is impossible write/read file on remote computer.
+%
+%   Value 7:    The valu user and/or passwd are incorret or the user have
+%               no permission to execute a Matlab section.
+%
+%
 %
-%   Value 5:    It is impossible write/read file on remote computer.
 %
 % Then at the point call of this function it is possible react in a best way, in accord
 % with the ErrorCode.
@@ -95,13 +109,13 @@ if (DataInput.Local == 1)
     
     % We look for the information on local computer hardware.
     
-    si=[];
-    de=[];
+    si0=[];
+    de0=[];
     
-    [si de]=system(['psinfo \\']);
+    [si0 de0]=system(['psinfo \\']);
     
     RealNumCPU=-1;
-    RealNumCPU=GiveCPUnumber(de);
+    RealNumCPU=GiveCPUnumber(de0);
     
     % Trasforming the input data provided in a form [n1:n2] in a single numerical
     % value.   
@@ -125,15 +139,15 @@ end
 
 % In this case we need more sophisticated check. 
 
-
+ 
 if (DataInput.Local == 0)
     
-    si=[];
-    de=[]; 
+   si1=[];
+   de1=[]; 
     
-    [si de]=system(['ping ', DataInput.PcName]);
+  [si1 de1]=system(['ping ', DataInput.PcName]);
     
-    if si==1 
+    if si1==1 
         % It is impossiblie to be connected to the
         % remote computer.
         
@@ -141,56 +155,93 @@ if (DataInput.Local == 0)
         return;
     end
     
-    
-    % -> IL CODICE SEGUENTE E' DA CONTROLLARE E VERIFICARE! 
-    
     % The Local Machine can be connetted with Remote Computer.
+    
     % Now we verify if user name and password are correct and if remote
     % drive and remote folder exist on the remote computer and it is
     % possible to exchange data with them.
+   
+     
+    if (isempty(DataInput.user)) || (isempty(DataInput.passwd))
+      
+      % The fields user name and/or password are/is empty!
+      
+      ErrorCode=4;
+      return
     
-    si=[];
-    de=[];
-    
-    [si de]=system(['psinfo \\', DataInput.PcName, ' -u ',DataInput.user, ' -p ',DataInput.passwd ]);
-    
-    if si<0
-        % It is possible to be connected to the remote computer but it is not usable because the user
-        % name and/or password is/are incorrect.
-        
-        ErrorCodeComputer=4;
-        return;
-    else 
-        % Username and Password are correct!         
     end
     
-    % Now we verify if it possible to exchange data with the remote
-    % computer:
+   
+    % Now we very if RemoteDrive and/or RemoteFolder exist on remote
+    % computer
     
+    StartPwd=pwd;
     
-    fid = fopen('Tracing.txt','w+');
-    fclose (fid);
+    try
+        cd(['\\',DataInput.PcName,'\',DataInput.RemoteDrive,'$\',DataInput.RemoteFolder]);
+    catch
+       
+        cd ([StartPwd]);
+        disp 'Remote Drive and/or Remote Folder not exist!';
+        
+        ErrorCode=5;
+        return
+    
+    end
 
-    % ATTENZIONE: verificare perche sembra funzionare anche se il RemoteFolder non
-    % esiste.
+   cd ([StartPwd]);
     
-    Status=movefile('Tracing.txt', ['\\',DataInput.PcName,'\',DataInput.RemoteDrive,'$\',DataInput.RemoteFolder]);
+ 
+   % Now we verify if it possible to exchange data with the remote
+   % computer:
+    
+    
+    Status=copyfile('Tracing.m', ['\\',DataInput.PcName,'\',DataInput.RemoteDrive,'$\',DataInput.RemoteFolder]);
     
     if Status==1   
         % Remote Drive/Folder exist on Remote computer and
         % it is possible to exchange data with him.
     else
         
-        % Move file error!
-        ErrorCodeComputer=5;
+        ErrorCode=6;
         return;
     end
+   
     
+   % Now we verify if it is possible execute a matlab section on remote
+   % machine when the user is .user with password .passwd
+   
+    si2=[];
+    de2=[];
+   
+    [si2 de2]=system(['start /B /WAIT psexec \\',DataInput.PcName,' -e -u ',DataInput.user,' -p ',DataInput.passwd,' -W ',DataInput.RemoteDrive,':\',DataInput.RemoteFolder, ' -low  matlab -nosplash -nodesktop -minimize -r Tracing']);
+     
+    NoError='error code 0';
+    
+    StrError= findstr(NoError,de2);
+    
+   
+    if isempty (StrError)
+      
+       % Bad user and/or passwd!
+        ErrorCode=7;
+        return;
+       
+    else 
+        
+        % No error it is possible execute a matlab section on remote
+        % machine when the user is .user with password .passwd
+    end
+    
+   
     % At this point we can to analyze the remote computer hardware.
     
-    
     RealNumCPU=-1;
-    RealNumCPU=GiveCPUnumber(de);
+    
+    
+    [si0 de0]=system(['psinfo \\']);
+    RealNumCPU=GiveCPUnumber(de0);
+    
     
     % Trasforming the input data provided in a form [n1:n2] in a single numerical
     % value.