You might want to check out the new book "Component-based Development with Visual C#". It has a chapter dealing with WebBrowser and MsHtml customization. It shows how to implement IOleClientSite and IDocHostUIHandler interfaces in a Windows Form. It also shows how to support IDocHostShowUI and other useful Ole interfaces for MsHtml customizing.
If you're interested, you can find the book at: http://www.amazon.com/exec/obidos/ASIN/0764549146/qid=1020705470/sr=8- 1/ref=sr_8_67_1/102-8883863-7950540 --Ted You can read messages from the DOTNET archive, unsubscribe from DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.