ESS from ERP 2005 installation with EP 7

Hi,

We are planning the implementation of the ESS from ERP 2005. We know that ESS has to run with EP 7 (nw2004s). But does it have to be running in the same physical server as EP7? Or they can be seperated (i.e. EP7 on one box, and ESS/ERP with WAS 7 on another box). Is such distributed scenario supported?

Thanks a lot,

Marc