Tell me what API to enable DHCP not using Netsh. "Strange behavior of WMI EnableDHCP command on Windows Vista & 7" http://social.msdn.microsoft.com/Forums/en-US/windowscompatibility/thread/e30cfdf1-4e5c-4bcc-bfe7-540b62ef63ad Thank you.

If you want to manage DHCP via script, you can refer: Performing Networking Tasks: Managing DHCP from PowerShell Important Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information. Arthur Xie TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

I have found to be able to use SetUnicastIpAddressEntry (IP Helper Functions) to enable DHCP. Thank you.

For your information A netsh behavior difference between Windows 7 and Vista http://social.technet.microsoft.com/Forums/en/w7itproSP/thread/e5292bd2-25a7-4d2a-affb-42f44514bf22