If you absolutely cannot pay for Traktor Pro 3 right now, consider these and legal DJ software options for Windows:

Mike took a look and shook his head. "You shouldn't have downloaded it from that website, man. I got it from the official Native Instruments website, and it was a seamless process. Why don't I give you my license key, and you can download it from the official site?"

Native Instruments offers a demo. After 30 minutes, audio mutes until you restart the software. It’s not a full version, but it’s a free, safe way to test: