These files are from a package called vxitools also called vxitls. I believe the LabVIEW drivers CD will install this package, but if it doesn't you can down load the file from our ftp site:
Also for future reference please only post a question on the forums once. Starting multiple threads about the same issue will not get you an answer any faster.
Thanks Mr.Shawn and well noted to post one question only once. I got the file from LabVIEW drivers CD. But I am facing some more problems. I'm using Tektronix/CDS 73A-453 to send data to a remote terminal through MIL-STD 1553b bus in a VXI module. But i'm not able to receive the data at the remote terminal. If I get some basic examples on data transmission over the 1553 bus then it will be useful for me to understand the basics. Thanks once again. Bye.
Have you tried using the instrument driver for you device? You can find instrument drivers by searching at www.ni.com/idnet. I think this is the driver for your device. Most drivers contain a small example that shows basic use of the driver, so you might want to take a look at that.