// aggregator.idl
import "unknwn.idl";

[ object, uuid(10000001-0000-0000-0000-000000000001) ]
interface ISum : IUnknown
{
	HRESULT Sum(int x, int y, [out, retval] int* retval);
}

[ object, uuid(10000011-0000-0000-0000-000000000001) ]
interface IMultiply : IUnknown
{
	HRESULT Multiply(int x, int y, [out, retval] int* retval);
}