Click Here to Download Office Viewer Component - Support to open Word, Excel, PowerPoint, Visio and Project
DSOFramer Control is 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 lots of strange problems and is difficult for users to solve. All these will take lots of time on overtime.
Edraw Office Viewer Component is a commercial development component for the MS Word, Excel, PowerPoint, Visio and MS Project. It's more stable and safer.