Since the application is very old, the only way to run the application on your Windows 10 is with the help of a virtualization tool. Luckily, there are plenty out there and they're also optimized to emulate full versions of operating systems including the previous Windows ones.
You will have to use such tool to install Windows XP in a virtual environment and then transfer Protel 98 in that environment to launch it.
Note: A Windows XP installation disc or ISO is also necessary. Follow this guide if you're having trouble.