cause and will use its reasonable best efforts to minimize any resulting delay in or interference with the performance of its obligations hereunder. 5.6. Governing Law; Jurisdiction. This Agreement and all related business transactions will be governed by the laws of the Commonwealth of Massachusetts (without reference to principles of conflicts or choice of law which would cause the application of the internal laws of any other jurisdiction). The courts of or in the Commonwealth of Massachusetts will have nonexclusive jurisdiction over any disputes hereunder. Service of any action or proceeding in any such courts by either party may be made upon the other by registered mail, return receipt requested, at its address given herein. 5.7. Amendments. Neither this Agreement nor any provision hereof may be amended except by a writing duly signed on behalf of each party. 5.8. Remedies. All remedies available to either party for breach of this Agreement are cumulative and may be exercised concurrently or separately. The exercise of one remedy will not be deemed an election of such remedy to the exclusion of other remedies. 5.9. Severability. In the event any provision of this Agreement, in whole or in part, is invalid, unenforceable or in conflict with the applicable laws or 15 -14- regulations of any jurisdiction, such provision will be replaced, to the extent possible, with a provision which accomplishes the original business purposes of the provision in a valid and enforceable manner, and the remainder of this Agreement will remain unaffected and in full force provided, however, that if without such invalid or unenforceable provision the fundamental mutual objectives of the parties cannot be achieved, either party may terminate this Agreement without penalty by written notice to the other. 5.10. Interest. Any overdue amounts payable hereunder will bear interest, payable on demand (whether