I have got a crash problem with creation kit when i press "add script" in magic effect or in quest tab, the problem there is only if i add this line SResourceArchiveList2=Skyrim - Shaders.bsa, Update.bsa, Dawnguard.bsa, Dragonborn.bsa in Skyrimeditor.ini ,but if i remove it i can't load dawnguard.esm. Thanks for any help.

Is it a hard crash or does your CK just freeze? When you click 'add script' it loads every single script that you can possibly add. My guess is that since you added the DLC BSAs it is now also loading their scripts, and just taking a longer time. If it simply freezes, just wait and it should resume responsiveness shortly.