Hey guys, Did you that you need to set the internal and externalurl to legacy for free busy to work ??? I don't see any official articles on this. Please help. here is all i found on the net For free/busy to work Exchange 2007 to Exchange 2010 coexistence, you must set the webservices url on Exchange 2007 CAS servers to legacy.company.com. Below are the commands: On Exchange 2007 CAS servers, run: set-webservicesvirtualdirectory –internalurl legacy.company.com set-webservicesvirtualdirectory –externalurl legacy.company.com Here is the link

here is the official article http://technet.microsoft.com/en-us/library/dd351133.aspxMCP, MCSE 2000 , MCSA 2000 ,MCSA 2003 , MCITP , MCTS , MCT

Here's another one http://technet.microsoft.com/en-us/library/dd638158.aspx Jonas Andersson | Microsoft Community Contributor Award 2011 | MCITP: EMA 2007/2010 | Blog: http://www.testlabs.se/blog | Follow me on twitter: jonand82

Hi Mr Lutz, Any other question, If you have, please tell us. Regards! GavinPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.