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In this office, most of us are using Outlook 2007, while a few of us uses Outlook 2010. For Outlook 2007, we are able to view other people's free busy information after hacking the registry of HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Options\Calendar and enter a new DWORD value data called 'UseLegacyFB' and set the value as 1. Once we do that, we are able to view people's free/busy information.

I don't know what to do with the Outlook 2010, since hacking the registry and updating windows did not work.

Help? :(

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What version of exchange are you using? –  DKNUCKLES Mar 23 '12 at 20:42
    
We are using exchange 2007. Other information about this is that it displays: "No Information. No free/busy information could be retrieved. Your server location could not be determined. Contact your administrator." –  confusedone Mar 23 '12 at 21:46

1 Answer 1

It sounds like the Exchange 'Availability Service' is not functioning correctly on your Client Access Server.

In Exchange 2007, Free/Busy information is available via two technologies. The old/legacy system is storing it in Public Folders, whereas the new tech is via a Web Service called the Availability Service.

Outlook 2007 can be set to use the old Free/Busy tech using the UseLegacyFB registry key, but Outlook 2010 has no support for this.

Please have a look at this Microsoft TechNet article on "Troubleshooting Free/Busy Information for Outlook 2007"

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