NI Setup for simple driver?

Hello,

first excuse me as I don't find a good board to post this general question!

I've got the NI USB-6051 device but I can't find the pure driver for Windows! I want to do a SMALL silent setup (maybe a different one for x86/x64) with with just the sys driver and the additionally needed NICAIU.dll. How do I extract this niem* stuff from the whole setup?

Thanks in advance