Delete BC4Key.txt located in %appdata%\Scooter Software\Beyond Compare 4\ .
: Sometimes, users inadvertently use a key found online rather than the official one sent in their order email. Version Incompatibility beyond compare 4 license key has been revoked
The message "Beyond Compare 4 license key has been revoked" generally indicates that the license key has been leaked publicly or flagged for a violation of the License Agreement Common Reasons for Revocation Public Leakage: Delete BC4Key
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For further assistance, visit the Scooter Software Support page or check the Scooter Software Forums for community advice. beyond compare 4 license key has been revoked