I have the following in VB:

Set sc = WScript.CreateObject("MSSOAP.SoapClient")
sc.mssoapinit "http://www.levelextreme.com/universalthread.wsdl"
set sc.HeaderHandler = WScript.CreateObject("SessionInfoClient.ClientHeaderHandler")

I tried to convert that in VFP with:

loUniversalThread=Createobject("mssoap.soapclient")
loUniversalThread.mssoapinit("http://www.levelextreme.com/universalthread.wsdl")
loHeaderHandler=CreateObject("SessionInfoClient")
loUniversalThread.AddObject('HeaderHandler','loHeaderHandler')

But this doesn't work as the last line says unknown name.