.kick xe from VisualC++.
      /Lnn on xe cmd line parameter is to jump to the line nn just
      after the file is opened.
#ifdef WIN
      This is for VC++ debugger to open by xe the file in question.
      To use this function,setup VC++ as following.
           Register xe as tool.(Tool-->Customize-->Tool tab)
           Set argument like as "$(FilePath) /L$(CurLine)"
           and also current dir as "$(CurDir)".
           Shortcut key is registered by Keyboard tab selecting
           UserTool_ of Category:Tool.
      /L is also a parameter of edit/browse cmd.
#endif