DOS Games made for DOS require an emulator to run on Windows. Use DOSBox or a frontend like D-Fend Reloaded and read this guide to play DOS games on your Windows PC.
Princess Maker 2 has received a newer "refined" version for Windows. The overall graphics of the game have been improved, along with sound quality and various other improvements.
The above text is licensed under the GNU Free Documentation License. This text is based on this Wikipedia article.
Search on eBay