Launching instant messaging component from web dynpro

Hi
We have a requirement to launch instant messaging component from a web dynpro java link. Could you tell me what APIs can be used here? Is it possible to launch the component in a new browser window through some API calls?
From collaboration launch pad if we take the link of instant message from properties and try to open it a new browser instance, we find a message staing "Session not started" and there is some java script error in the page. Also the Send button is invisible and the other buttons Leave Session, Close Session are inactive. Is it possible to launch the messaging window from a url?
The url we used to launch it is as below.
http://host:port/irj/servlet/prt/portal/prtroot/com.sap.netweaver.coll.appl.ui.rtc.RTCComponent?jspName=Chat.jsp&paramIndex=2&initiator=X
Looking forward for your comments.
Thanks
Sudeep

It's possible. On your alv you have to add botton with action to call bsp.
You can use the following coding to determine the object type...
CALL METHOD lr_mapping_srv->determine_ui_object_of_bor
    EXPORTING
      iv_bor_object_key  = lv_bor_object_key
      iv_bor_object_type = ls_orderadm_h-object_type
      iv_logical_system  = ls_orderadm_h-logical_system
    RECEIVING
      rv_result          = lv_ui_object_type.
Then you have to build bsp...
lv_orderadm_h_guid_c = ls_orderadm_h-guid.
  CONCATENATE
    lc_par0 sy-mandt
    lc_par1 lv_ui_object_type
    lc_par2 lc_display
    lc_par3 lv_orderadm_h_guid_c
    lc_par4 'nocookie'
  INTO lv_query.
  CALL METHOD cl_bsp_runtime=>if_bsp_runtime~construct_bsp_url
    EXPORTING
      in_application = lc_bsp_application
      in_page        = lc_bsp_page
    IMPORTING
      out_abs_url    = lv_open_url.
  CONCATENATE lv_open_url lv_query INTO lv_open_url.
and finally you have to call browser...
lo_api_component  = wd_comp_controller->wd_get_api( ).
  lo_window_manager = lo_api_component->get_window_manager( ).
  CALL METHOD lo_window_manager->create_external_window( EXPORTING url = lv_open_url
                                                         RECEIVING window = lo_window ).
  lo_window->open( ).

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