Object created dynamically. how to call a method or interface from it

Hi Experts,
I've just created an abap proxy dynamically
   FIELD-SYMBOLS <ref> TYPE any.
    CREATE DATA dref TYPE REF TO
               (ld_class).
    ASSIGN dref->* TO <ref>.
    CREATE OBJECT <ref>
      TYPE
        (ld_class)
      EXPORTING
        logical_port_name =logicalport.
This runs OK
But I can't call an Interface of the object proxy that belongs to ld_class
ld_prot ?=   <ref>->if_proxy_basis~get_protocol( if_wsprotocol=>sequence ).
because the object <ref> is type any, it doesen't runs
This work' s fine
    MOVE <ref> ?TO proxy1.
    ld_prot ?= proxy->if_proxy_basis~get_protocol( if_wsprotocol=>sequence )
if proxy is explicity declarated like class proxy
But I don't want do it. I want do it dynamically to avoid write data declaration explicity
I think this is a problem for every data that must be declarated by the form TYPE REF TO
What must I do ?
thanks in advance.

Hi.,
Check this help Document : [Dynamic Method Call in ABAP Objects|http://help.sap.com/abapdocu_70/en/ABENNEWS-46-OBJECTS-DYNAMIC.htm]
aslo [Dynamic method call|Type conflict during dynamic method call.;
hope this helps u.,
Thanks & Regards
Kiran

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