Hi Mehmetg,
The "IMAQ 1394 Get Interface Files" VI is installed with the 1394
driver. This driver comes with the 1394 interface board or can be
purchased seperately. Look at the link below for purchasing
information if you do not already have it.
http://sine.ni.com/nips/cds/view/p/lang/en/nid/12892
If you already have the 1394 driver installed then you will need to go
back through the installation process and choose to install the
"support for LabVIEW." This will install the 1394 API which will
be located in the Functions>>NI
Measrements>>Vision>>NI IMAQ For 1394 Cameras pallette.
Best Regards,
Brooks W.
National Instruments