diff --git a/EgtGeneral.rc b/EgtGeneral.rc
index ea0c7c3..8977ced 100644
Binary files a/EgtGeneral.rc and b/EgtGeneral.rc differ
diff --git a/FileUtils.cpp b/FileUtils.cpp
index 50f032a..3c4e68f 100644
--- a/FileUtils.cpp
+++ b/FileUtils.cpp
@@ -13,9 +13,9 @@
 
 //--------------------------- Include ----------------------------------------
 #include "stdafx.h"
-#include "\EgtDev\Include\EgnFileUtils.h"
-#include "\EgtDev\Include\EgnStringUtils.h"
-#include "\EgtDev\Include\EgtStringConverter.h"
+#include "\EgtDev\Include\EGnFileUtils.h"
+#include "\EgtDev\Include\EGnStringUtils.h"
+#include "\EgtDev\Include\EGtStringConverter.h"
 #include <io.h>
 
 using namespace std ;
@@ -48,16 +48,38 @@ EraseFile( const string& sFile)
 }
 
 //-----------------------------------------------------------------------------
-bool
-FileExtensionMatches( const string& sFile, const string& sExt)
+string
+ChangeFileExtension( const string& sFile, const string& sNewExt)
 {
+  // separo l'estensione dal resto
    string sFileTitle ;
    string sFileExt ;
    SplitLast( sFile, ".", sFileTitle, sFileExt) ;
-   ToUpper( sFileExt) ;
-   string sExtUp = sExt ;
-   ToUpper( sExtUp) ;
-   return ( sFileExt == sExtUp) ;
+   if ( sFileExt.find_first_of( "/\\") != string::npos) {
+      sFileTitle = sFile ;
+      sFileExt = "" ;
+   }
+  // genero il nome con la nuova estensione
+   if ( sNewExt[0] == '.')
+      return ( sFileTitle + sNewExt) ;
+   else
+      return ( sFileTitle + "." + sNewExt) ;
+}
+
+//-----------------------------------------------------------------------------
+bool
+FileExtensionMatches( const string& sFile, const string& sExt)
+{
+  // separo l'estensione dal resto
+   string sFileTitle ;
+   string sFileExt ;
+   SplitLast( sFile, ".", sFileTitle, sFileExt) ;
+   if ( sFileExt.find_first_of( "/\\") != string::npos) {
+      sFileTitle = sFile ;
+      sFileExt = "" ;
+   }
+  // confronto
+   return ( CompareNoCase( sFileExt, sExt)) ;
 }
 
 //-----------------------------------------------------------------------------