REDMOND, Wash. — July 20, 2005 — Microsoft Corp. today announced that it will acquire FrontBridge Technologies Inc., a leading provider of managed services that address corporate e-mail security, compliance and availability requirements. With this acquisition, Microsoft will deliver a service for enforcing compliance through archiving, minimizing spam and viruses, and ensuring e-mail availability in the case of a disaster. FrontBridge’s scalable service-delivery model can be applied