Import-Mailbox -Identity raka@domain.com -PSTFolderPath f:\raka.pst errormigration From Exchange 2003 (32-bit) to Exchange 2007 (64-Bit)This is the error[PS] F:\>Import-Mailbox -Identity raka@domain.com -PSTFolderPath f:\raka.pstYou are running on a 64-bit computer. To export to or import from a .pst file,you must be running a 32-bit computer that has Outlook 2003 SP2 or later installed.At line:1 char:1+ i <<<< mport-mailbox -identity raka@domain.com -pstfolderpath f:\raka.pst[PS] F:\>

As the message states, you cannot run the import-mailbox cmdlet from a 64 bit os. There is actually more to it as well. You need to be running a 32-bit OS and also need to have Outlook installed, which rules out both servers in your environment, as Outlook cannot be installed on the same server as Exchange 2003. See here for more detail. Mike Crowley: MCT, MCSE, MCTS, MCITP: Enterprise Administrator / Messaging Administrator

Hi Raka,Yes, please check out "Before you begin" session in below article for prerequisites.How to Import Mailbox Datahttp://technet.microsoft.com/en-us/library/bb691363.aspxAmit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com