Hello Hendra,
You might also want to download a trial version of LabVIEW and then take a look at the instrument driver for the Neff 470. From there, you could write a DLL to be called in LabWindows/CVI.
Here is the link to the driver: http://sine.ni.com/apps/we/niid_web_display.download_page?p_id_guid=E3B19B3E9449659CE034080020E74861
And a link to download a trial version of LabVIEW: http://digital.ni.com/demo.nsf/websearch/CE34B1339DE04F2086256E930074129F?OpenDocument&node=1381_US
Thanks.
Wendy L
National Instruments
Wendy L
LabWindows/CVI Developer Newsletter