How to create listener in 11g RAC on windows 2008 server

Dear All,
i worked on win 2003 and linux 4, 5 too. i have installed oracle RAC on both windows and linux.
now i have installed oracle RAC11gR1 on windows 2008 server.than installed oracle software . now i want to create listener from db_home which i am facing problem.
i m starting netca from db_home. following the insturction when i finishing it , the proces get started but in the middle is showing the listener on node1 and node2 can't be created.
please guid me how i willl be able to creat it.
2nd poing how to create asm instance on RAC11gR1. is it need to install saparate home like 10g for that or i can create from 11g software home.
thanks,
sher khan

thanks for the update ,
dear oracle 11g rac recomends to create ocr and voting disk on asm.
i followed the documents they are saying you have to install grid control infrastructure and than need to create asmcfs.(automatic storage management cluster file system.).
how to create asmcfs to avoid the gridcontrol, if its must is it need to install on one node or both nodes.
can you plz guide me how to do this .
thanks,

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