I know Windows has to has have named pipes as it is called "POSIX compatible". I just got the impression that this is not designed for the same tasks as named pipes under UNIX.
Nevertheless I will look into Powershell. Maybe I have to distinct between output of a bash and a powershell script for conversion. That would be better than rewriting a handfull of scripts and then discovering that you need a runtime environment for the original scripts anyway.
Thanks again.