You are correct, first DAQmx version "officially compatible" with Win10 is DAQmx 15.5, and this will not work with LabVIEW 2011.
RavensFan also stated that LabVIEW 2011 is officially not compantile with Win10.
In my experience even drivers and software compatible with Windows 7 (or even older) will still work with Windows 10. So I suggest: Just give it a try with DAQmx 14.5.1 or DAQmx 15.0. If it works - good for you - you can still consider to switch to another version of LabVIEW. Only drawback: Do not expect any official support if you run into problems.
Regards, Jens
Kudos are welcome...