For specific information about the "hexcmp 2 register key," I recommend checking the official website of the software or contacting their support directly. They can provide accurate information on how to obtain a registration key and any associated costs.
Once registered, HexCmp 2 provides several powerful features for developers and reverse engineers: hexcmp 2 register key
hexcmp <register_code> <registration_key> For specific information about the "hexcmp 2 register