OLEObject MSSOAPLib1
MSSOAPLib1= CREATE OLEObject
long ll_result 
ll_result = MSSOAPLib1.ConnectToNewObject("MSSOAP.SoapClient")
if ll_result <> 0 then
   messagebox("Conection","Connect Error!")
else
   messagebox("Conection","Connect OK!" + string(ll_result))
end if

用pb调用webservice，但是这里调用MSSOAP.SoapClient的时候提示错误，返回来的ll_result=-2，怎么回事，在线求解