looking for win icon editor with icns output

[Tiemo Hollmann TB]

Hello all,

My platform is Win XP and I am using Icofx to create Win Icons for Rev, what
works perfect. I have been searching for a freeware tool to create or
convert win icons (ico) to Mac Icons (icns) but didn't find anything yet. I
have only found tools to create for both platforms, working on Mac. Does
anybody has a tip for a tool on Win?

Thanks

Tiemo