Have at look at these URLS :
http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/832b604cb371a54686256540004f7b3c?OpenDocument
http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/9d6f8bad48ddc7aa86256b430079fd53?OpenDocument
I have successfully used the first solution. You will need LV6.1 for the second one.