diff --git a/src/xvaga/oswin32.cpp b/src/xvaga/oswin32.cpp
index 2e82ad1e8..168a37827 100755
--- a/src/xvaga/oswin32.cpp
+++ b/src/xvaga/oswin32.cpp
@@ -1085,7 +1085,7 @@ bool Win32ProgressIndicator::SetProgress(long nCurrent, long nTotal)
         {
           const int nSpeed = nCurrent / nSec > 0 ? nCurrent / nSec : 1;	
           const int nRemaining = nTotal - nCurrent;
-          const int remainingTime = nRemaining / nSpeed;
+          const int remainingTime = nSpeed > 0 ? nRemaining / nSpeed : 0;
           int s = nSec;
           const int h = s / 3600; s %= 3600;
           const int m = s /   60; s %=   60;
@@ -1243,3 +1243,23 @@ void OsWin32_ProgressSetText(WXHWND prog, const char* msg)
     pd->SetText(msg);
 }
 
+bool OsWin32_IsdTaskbarVisible()
+{
+	HWND hTaskbarWnd = FindWindow("Shell_TrayWnd", NULL);
+	HMONITOR hMonitor = MonitorFromWindow(hTaskbarWnd, MONITOR_DEFAULTTONEAREST);
+	MONITORINFO info = { sizeof(MONITORINFO) };
+
+	if (GetMonitorInfo(hMonitor, &info))
+	{
+		RECT rect;
+		GetWindowRect(hTaskbarWnd, &rect);
+		
+		if ((rect.top >= info.rcMonitor.bottom - 4) ||
+			(rect.right <= 2) ||
+			(rect.bottom <= 4) ||
+			(rect.left >= info.rcMonitor.right - 2))
+			return false;
+	}
+	return (IsWindowVisible(hTaskbarWnd));
+
+}
\ No newline at end of file
diff --git a/src/xvaga/oswin32.h b/src/xvaga/oswin32.h
index afe6d0228..6d746646e 100755
--- a/src/xvaga/oswin32.h
+++ b/src/xvaga/oswin32.h
@@ -35,6 +35,8 @@ void   OsWin32_ProgressDestroy(WXHWND hProgDlg);
 bool   OsWin32_ProgressSetStatus(WXHWND hProgDlg, long nCurrent, long nTotal);
 void   OsWin32_ProgressSetText(WXHWND hProgDlg, const char* msg);
 
+bool OsWin32_IsdTaskbarVisible();
+
 //#define SPEECH_API 1
 #ifdef SPEECH_API
   bool OsWin32_InitializeSpeech();
diff --git a/src/xvaga/xvaga.cpp b/src/xvaga/xvaga.cpp
index fcbac12ce..26d67ab71 100755
--- a/src/xvaga/xvaga.cpp
+++ b/src/xvaga/xvaga.cpp
@@ -3179,6 +3179,18 @@ SLIST_ELT xvt_slist_get_next(SLIST list, SLIST_ELT item)
 	return (SLIST_ELT)(list != NULL && item != NULL ? item->next : NULL);
 }
 
+SLIST_ELT xvt_slist_find_str(SLIST list, const char* str) // Cerca una stringa all'interno di una SLIST
+{
+  SLIST_ELT e = NULL;
+  for (e = xvt_slist_get_first(list); e; e = xvt_slist_get_next(list, e))
+  {
+    const char* val = xvt_slist_get(list, e, NULL);
+    if (xvt_str_compare_ignoring_case(str, val) == 0)
+      break;
+  }
+  return e;
+}
+
 ///////////////////////////////////////////////////////////
 // XVT Strings???
 ///////////////////////////////////////////////////////////
@@ -3911,6 +3923,25 @@ BOOLEAN xvt_fsys_rename_file(const char *src_pathname, const char *dst_pathname)
   return wxRenameFile(src_pathname, dst_pathname);
 }
 
+BOOLEAN xvt_fsys_fupdate(const char* src, const char* dst) // Aggiorna il file dst se pił vecchio di src
+{
+  bool ok = false;
+  if (xvt_fsys_file_exists(src))
+  {
+    const long tsrc = xvt_fsys_file_attr(src, XVT_FILE_ATTR_MTIME);
+    if (tsrc > 0)
+    {
+      long tdst = 0;
+      if (xvt_fsys_file_exists(dst))
+        tdst = xvt_fsys_file_attr(dst, XVT_FILE_ATTR_MTIME);
+      if (tsrc > tdst)
+        ok = xvt_fsys_fcopy(src, dst) != 0;
+    }
+  }
+
+  return ok;
+}
+
 ///////////////////////////////////////////////////////////
 // Timers
 ///////////////////////////////////////////////////////////
@@ -4559,6 +4590,15 @@ void xvt_win_trap_pointer(WINDOW win)
 	_mouse_trapper = &w;
 }
 
+BOOLEAN xvt_win_is_taskbar_visible()
+{
+#ifdef __WXMSW__
+	return OsWin32_IsdTaskbarVisible();
+#else
+	return OsLinux_IsdTaskbarVisible();
+#endif
+}
+
 ///////////////////////////////////////////////////////////
 // Status bar
 ///////////////////////////////////////////////////////////