Using Sharepoint and Outlook Web Access to view Exchange Public Folder
One of the nice things about Sharepoint is that you can basically view any web page using the web page viewer.


I am using this WebPart to display my Family Calendar in an Exchange Public folder which is in my private site. This site prompts you to login as a valid user before viewing the default page. The main problem with the way that Outlook Web Access is configured is that it uses Forms based authentication which prompts you to authenticate twice.
This poses a problem when you want everything to authenticate automatically within the WebPart. The only drawback to this approach is that you get the ugly logon dialog vs the cool outlook web access form.
- First you need to go to the Exchange ESM mmc snap-in
- Drill down to the "Exchange Virtual Server" under Protocols/HTTP
- Select properties from the right click context menu.
- Go to settings and uncheck "Enable Forms Based Authentication"
- Goto the Internet Information Services Manager. (ISM)
- Drill down to the default web site and change the authentication for the Exchange and Public to Integrated and Basic Authentication.

- ExchWeb should be left as anonymous access.
- Additionally OMA should be set to basic. (You may need to reset the web.config after changing the Exchange settings** See the following instructions http://blogs.slashstar.com/alex/articles/665.aspx)
- Restart IIs and test the new setting with your Sharepoint page. You should only have to login once for the main page.
** This configuration is based upon SBS 2003 in a single server configuration.
Alex