Location of darrc on windows

Hello,

I was trying to customize /etc/darrc file in downloaded windows binaries 
installation, but seems like the file is not read by dar. Here is how I 
tested it with the stock file trying to use target 'bell':

C:\Users\vladimir>C:\bin\dar64-2.6.13-win64\dar.exe bell
Parse error: Given user target(s) could not be found: bell

According to cygwin FAQ 
(https://www.cygwin.com/faq.html#faq.using.multiple-copies):

'Each Cygwin DLL on the machine constitutes a Cygwin installation, with 
the directory the Cygwin DLL resides in treated as "/bin", the parent 
directory as "/".'

So I presume the /etc/darrc should be places in parent directory of 
dar.exe, but that did not work either, as well as moving it to root 
directory of the windows drive.

Any advice?

Thanks,
Vladimir