A log file, file that lists actions that have occurred, is useful to get idea of errors. Usually emulator show Extended panic code, if you enabled them, when application crash. But sometime emulator itself will crash, at that time we need to check logs file from Epocwind.out.
Epocwind.out also gives you information for missing capability by raising *PlatSec* WARNING message.
This article explained how to find and access this Epocwind.out file. Content of this article is small, but very useful to both for beginners and for experienced developers. This will save time to debug application.