Click Here to Download Office Viewer Component - Support Open Word, Excel, PowerPoint, Visio and Project
DSOFramer Control is released, provided by Microsoft to demonstrate how to host Office documents in VB or HTML. As a COM component, it can also be invoked inside .net applications. Unfortunately MS does NOT guarantee any support as it is provided as an example only. The component has tons of strange problems and is difficult for users to solve. All these will require a great deal of time to overtime.
Edraw Office Viewer Component is a commercial develop component for the MS Word, Excel, PowerPoint, Visio and MS Project. It's more stable and safer.