How to download small size driver of NI switch?

[tanggio]

I want to download NI driver like NI switch,NI fgen,NI DMM ,but I found the package size is too big(more than 1G),as I know ,the package contain other software like visa and etc.., but I have installed the releated software before,I just want to install "pure" driver for NI switch,do you have them?Thanks

[tanggio]

I got a disc which contain the device driver ,I found NI-SWITCH driver package is only 100M size,but in your web NI-SWITCH driver size is more than 1G,can I found small size driver in your web?