Hello zantarr. krust should run if you are using MQ2-20060227b.zip,
but i would strongly recommend applying ieatacid's fix from this thread to MQ:
http://www.macroquest2.com/phpBB2/viewtopic.php?t=12893 as it fixes other CTD's too that might be triggered from macros
In addition, krust did crash with MQ2-20060227a.zip and earlier because of a bug with the /popup command, so check that you are using the latest version.
You may also want the updated PoR UI files for krust if you dont have them
I havent updated the macros in a while, and they seem a little bit broken with current MQ2 (not in a crashing kind of way, but some things dont seem to work anymore). I'm still looking into the krust macro to fix the new problems