Aspell with umlauts in Windows Command Prompt

Linus Feiten <[email protected]> Thu, 6 Jul 2017 16:29:56 +0200
Newsgroups gmane.comp.gnu.aspell.user
Message-ID <[email protected]>
I want to use Aspell in the Windows command prompt. Installed Aspell
0.60.6.1. with Cygwin. When I process files with German umlauts they are
not displayed by Aspell, even though the correction and everything
works. Any ideas? Thanks, Linus