Ethan Winer and Gene Buckle

Ethan Winer and Gene Buckle are the names associated with a small software catalog focused on tools for legacy computing environments, with their published range currently consisting of a single specialized utility. Their flagship offering, XREF, is a natively 16-bit cross-reference program built for DOS, representing a category of developer-oriented software that was once common in professional programming workflows. Cross-reference tools of this kind analyze source code or program data and generate listings that show where symbols, variables, routines, or labels are defined and referenced, making it easier to navigate, audit, and maintain large codebases. Because XREF is a genuinely 16-bit application rather than a recompiled or emulated equivalent, it also serves a secondary and somewhat unusual purpose: it provides a convenient, real-world way to verify whether the NT Virtual DOS Machine (NTVDM), the compatibility subsystem that allows 16-bit DOS software to run, is functioning correctly on 32-bit (x86) editions of Windows 10. This makes the program useful not only to developers working with legacy code, but also to system administrators, retrocomputing enthusiasts, and IT professionals who need a reliable test case when validating DOS subsystem support, troubleshooting compatibility configurations, or documenting the behavior of older applications on modern platforms. Typical users of this catalog would therefore include programmers maintaining vintage software projects, hobbyists preserving historical computing environments, and technical staff responsible for ensuring that legacy business applications continue to operate on contemporary hardware. The catalog's narrow but deliberate focus reflects a practical philosophy: offering dependable, well-defined utilities for niche environments where mainstream modern software no longer provides equivalent functionality.