wwwXigniteComServices.XigniteGlobalCurrenciesSoap testCls = new wwwXigniteComServices.XigniteGlobalCurrenciesSoap();

wwwXigniteComServices.Header h = new wwwXigniteComServices.Header();

h.Username='****';
h.Password='****';
h.Tracer='****';
testCls.Header = h

testCls.GetRealTimeRate('EURUSD');