I have an intranet where I want to configure all Excel/Word documents to open in the browser window. How do I change this setting for all users?
In Windows XP, to configure Internet Explorer to open Office files in the browser window, as opposed to the appropriate Office program, follow the steps below:
In Windows 7 I believe this is located in the Default Programs (accessible from Control Panel).
If you need to do it on many computers, you can run a script to change the registry.
PS: I personally always want excel and word documents to open outside the browser window as it can lead to weird behaviors when opening multiple documents...
If you open an Excel or Word document in a browser, it'll save the file somewhere else. Browsers can't open things that aren't HTML.
If what you mean is "I want people to use Online Office / Software as a Service", then you need to configure a service like that, be it Sharepoint, or Google Docs. That's beyond the scope of this question.
If what you actually mean is "I made a registry change so that the default application for .xls and .doc files is 'Default Web Browser' and I want to push that out to everyone in the domain", then your answer lies with Group Policy Objects.