Using native "dig" command in Windows
If you'd like to have a native version of "dig" on your Windows machine, ISC has made it quite simple.
1. Grab the "Current-Stable" Windows release from here.
2. Install it, with the toolbox "Tools Only" checked. Everything else unchecked. Make sure the target directory is somewhere you actually want it to go - and somewhere you remember, you'll need to append it to your path settings.
3. Now open your "System Properties" -> "Environment Variables" and click on the "path" variable. You're going to append where you installed the tools, inside the bin directory. Since I put mine in C:\dig I'm going to be appending "C:\dig\bin\".