when you do something like 'echo ö > test.txt' in a dos box, you will not find an "ö" in test.txt, but a double quote. I learned to overcome this by starting the dos box with "cmd /u", which works fine.
But: findstr does not seem to care... If I do something like 'findstr "some_txt" . > result.txt', any "ö"s that appear in the file names found will be displayed as double quotes again.
Any idea?