timmi1888--
Do you already own a version of NI-VISA? If you bought LabVIEW then you already have NI-VISA on the drivers disk. If this is not the version that you need, you can go on our website and download an upgrade (I've included a link to this site below) These drivers are ONLY upgrades, you will need a full version of NI-VISA installed. If you purchased NI-VISA separately and the CD is scratched or corrupt then create a service request (click "request support from an engineer") on the website so that we can get your serial number and see what we can do. Finally, if you are just looking to get NI-VISA and do not have LabVIEW (i.e. using the built in serial port without labview...no NI products) The let us know and you will be able to purchase it.
Let me know, thanks.
Upgrade site:
https://www.ni.com/en/support/downloads/drivers/download.ni-visa.html
Product Page:
https://www.ni.com/en-us/shop/product/ni-visa.html
Regards,
John H.
Applications Engineer
National Instruments
http://www.ni.com/support
