This document summarizes Microsoft's efforts to support OpenStack on Hyper-V. Key points include: - Microsoft is providing resources to enhance Hyper-V support in OpenStack, focusing on features for Essex and beyond like live migration and volume support. - Supporting Hyper-V allows enterprises to utilize their existing Windows infrastructure and expertise while providing interoperability with public clouds. - The initial Hyper-V driver provides basic VM management and Microsoft is working to improve it for Folsom with additional features and non-flat networking support. - Developers are encouraged to get involved to further expand Hyper-V support in OpenStack.