If you are looking for similar binary comparison tools with modern support, retailers and reviewers from UltraEdit and community forums like mh-nexus.de suggest:

So, what advantages does a Hexcmp 2 register key offer? Here are just a few:

The most reliable way to get your key is directly through the website. Once you purchase a license, you receive a registration name and key. Entering these into the "Register" dialog unlocks the software permanently. Conclusion

: You can obtain a valid license key directly from Fairdell Software. This ensures you get a clean version without security risks and access to official support.

HexCMP was not a new tool. It had been written a decade earlier by a reclusive cryptanalyst who went only by the handle “Spline.” The program did one thing and did it perfectly: it took two hexadecimal strings (keys, cipher states, hash values) and compared them bit by bit, then round by round, across a cryptographic algorithm’s internal steps. It visualized diffusion, confusion, and avalanche effects in blazing color.

: Displays real-time cursor values in char, byte, word, and dword formats for high-precision editing. Flexible Search

Because HexCMP 2 utilizes Register Keys, it can perform semantic comparison . It recognizes that a value moved from [ESP+4] to [EBP-8] is logically the same operation, even if the absolute byte location changed. The Register Key stores the relationship of data, not just the raw offset. This makes it better for dynamic analysis.