Wireless networks are accommodating more and more emerging multimedia traffic from entertainment to telephony. However, wireless network standards typically focus on MAC layer and physical layer signaling, leaving crucial end to end delay and security issues to application implementers. Delay and security provisioning issues in such an environment is very challenging. In this paper, we address an integrated solution to end-to-end delay and security, where the middleware adaptation provides tunable delay and security support according to network condition. The test-bed experiments show that the proposed solution successfully adjusts multimedia applications to meet both delay and security requirements in IEEE 802.11-based wireless environment.