How do I open Raku in the background?

[ToddAndMargo via perl6-users]

Hi All,

Windows 10-1909 Pro
raku -v
This is Rakudo version 2020.01 built on MoarVM version
2020.01.1 implementing Perl 6.d.

I am opening Raku from the registry with

[HKEY_CLASSES_ROOT\*\shell\OpenWithFileAttributes.pl6\command]
@="\"C:\\rakudo\\bin\\raku.exe\" 
\"K:\\Windows\\NtUtil\\FileAttributes.pl6\" \"%1\""

Problem: up pops a big black box with Raku running it in.
Is there a way to rid myself of the big black box?
(I have pops for the information that is reported to
the user.)


Many thanks,
-T