The "full" version handles files up to 4GB+ without crashing. Modern ECUs (Bosch EDC17, MED17, Simos) have large flash dumps; HexCmp handles them smoothly.

Read the EEPROM using a programmer (e.g., XPROG-Box, Orange5, or UPA-USB). Save two versions:

For automotive use—specifically for ECU (Engine Control Unit) tuning, EEPROM reading, or modifying CAN bus data dumps—HexCmp is indispensable. Tuners often need to compare a stock binary file (e.g., a .bin or .hex flash dump) with a modified one to see exactly which bytes changed.

, HexCmp is a standard tool for automotive technicians and tuners. It is frequently used for: ECU Map Comparison

When you search for "full" versions of software from forum links, you must exercise extreme caution. Here is an honest assessment.

Purpose: a concise, critical walkthrough for readers to understand, assess, and get the most from "Fairdell HexCmp full - MHH AUTO - Page 1." Assumes the document is a technical/software/comparison page (hex comparison utility or part of MHH AUTO suite). If the document is different, substitute analogous specifics.