iPhone Configuration Utility 2.2 for Windows
iPhone Configuration Utility (IPCU) lets you easily create, maintain, encrypt, and install configuration profiles, track and install provisioning profiles and authorized applications, and capture device information including console logs. Recommended for those managing devices running iOS 3.x and iOS 4.x.
Configuration profiles are XML files that contain device security policies, VPN configuration information, Wi-Fi settings, APN settings, Exchange account settings, mail settings, and certificates that permit iPhone and iPod touch to work with your enterprise systems.
For information on how to integrate iOS devices with your enterprise systems, visit http://www.apple.com/support/iphone/enterprise/