Wyo. Stat. § 1-23-102

All instruments executed within this state in payment, satisfaction, settlement or compromise of any claim or cause of action abolished or barred by W.S. 1-23-101, whether the claim or cause of action arose in or out of this state, are void. It is unlawful to cause any person to execute a contract or instrument or cause any person to give, pay, transfer or deliver any money or thing of value in payment, satisfaction, settlement or compromise of any such claim or cause of action, or to receive, take or accept any money or thing of value as payment, satisfaction, settlement or compromise of any such claim or cause of action. It is unlawful to commence or cause to be commenced, either as party, attorney or as agent of either in any court of this state, any proceeding or action seeking to enforce or recover upon any such contract or instrument, knowing it to be such, whether executed in or out of this state.