hi, Please let me know the reason why can't we move exchange 2007 server edb datbase to exchange 2003 server. as we know exchange 2007 server edb database is portable.sumavardhan reddy

The structure of an Exchange 2007 database is not backwards compatible with an Exchange 2003 database. There were datbase design changes in 2007 for performance optimization.

On Wed, 6 Oct 2010 14:23:29 +0000, sumavardhanreddy4u wrote: >Please let me know the reason why can't we move exchange 2007 server edb datbase to exchange 2003 server. as we know exchange 2007 server edb database is portable. Database portability only works when the servers expect the same database structure and schema. The Exchange 2007 database, for examlple, doesn't use a pair of files (an EDB and STM file) to handle messages. The database page size is different between Exchange 2003 and 2007. There are additions to the schema that don't exist in Exchange 2003. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Thanks for the informationsumavardhan reddy

If you want to be able to move the data from an Exchange 2007 back to Exchange 2003, you can export to PST and then import the PST's to the 2003 server or use a third party product like Lucid8's DigiScope http://www.lucid8.com/product/digiscope.asp to move data direct from the offline 2007 EDB into any other production Exchange server.Troy Werelius www.Lucid8.com