If you need a DAW but don't want to purchase a full license, consider these modern, legal, and free options:

Are you trying to from that era, or are you just looking for a low-resource DAW for a specific computer? Cubase 5.1 ISO/DMG? (clean, no cracks) - Steinberg Forums

: A fully-featured, professional DAW that is currently free for Windows.

: If you already own a license for a modern version (e.g., Cubase Pro 13), your license is often backward compatible. You can contact Steinberg Support to request an ISO image for legacy versions like 5.1.

: Offers a very generous, fully functional 60-day evaluation period.

: Often bundled for free with hardware like audio interfaces or MIDI controllers.