Hi, well i am the topic starter. now i have an answer for my own answer.
But i still have to thank nishant for giving me a clue for my discovering of the answer.
If you want to end a process using the file name, use this:
taskkill /f /im *.exe
taskkill /f /im iexplore.exe
If you want to end a process using the window title, ust this:
taskkill /fi "Windowtitle eq *" >nul
taskkill /fi "Windowtitle eq how to end multiple process using the bat file - Windows internet explorer provided by yahoo!" >nul
Thanks, hope this will help for the other.