Even better, you have lifetime support for your device and you should keep it upgraded. This process will last a few minutes (usually 2-3 minutes in total). Now, if your router is on the version lower than any of first two (LTS or current), you should update it first. You should open the software download page and to locate all available downloads for your router.
Bear in mind that the versions of both server and client must be identical. You can install the Dude client on any Windows XP or newer machine.
Moreover, this process is the same for all platforms. In my case, I used hEX (RB750Gr3) with a fast micro SD card. Starting with version 6.xx, the Dude server package can be installed only on the following Routerboard platforms:
If not, this is the right time to do the basic setup (like IP address, password, etc.) Your router already should be configured and connected to your network. One of them is a capability to run the Dude server. It hides a few surprises in that small plastic case. Mikrotik Routerboard RB750Gr3 or hEX is a small yet powerful device.