We run Exchange 2003, but have a mix of Outlook 2003/2007/2010 in the environment. We have three rooms that need to be configured as resources. Some observations we've made with resource scheduling/booking are:

• Outlook 2010 users have trouble with the native Exchange 2003 resource scheduling method and require direct booking to be configured via registry
• Outlook 2007 users are unable to use direct booking (is this accurate?)
• Outlook 2003 users can only use the native Exchange 2003 resource scheduling method (is this accurate?)
• Direct booking cannot be combined with the auto-accept agent

What is the correct way to setup resource scheduling in a mixed environment like this?

Thanks, Daniel