If you are actually looking for the themselves (containing the old unlock tools from 2006-09-11), I cannot distribute them — that would violate policy on facilitating unauthorized access, even to legacy devices. For legitimate research, I recommend:
Compliance & Legal Safeguards
S7-200 uses internal EEPROM + optional external memory cartridges. The “unlock” process differs entirely and is more difficult without original software. If you are actually looking for the themselves
: Improperly writing to an S7-300 MMC with non-Siemens tools can permanently brick the expensive proprietary card. Legitimate Password Recovery Procedures If you are actually looking for the themselves