Where can I file a missing-feature/bug report ? Mono doesn't support the Microsoft Sync Framework (I tested v2.0), and there is no OpenSource alternative/substiute AFAIK. It's probably a COM wrapper around native dll's. Link: http://www.microsoft.com/downloads/details.aspx?FamilyID=89adbb1e-53ff-41b5-ba17-8e43a2e66254&displaylang=en