With Windows 7 we were getting "The process cannot access the file because it is being used by another process." errorThis fixed it...SME Server should be 7.4Set the following registry key on the Windows Vista or 7 client to prevent files from getting pulled down to the client again right after synchronizing changes to the server (due to Linux file systems having coarser timestamp resolution than Windows): Create a DWORD value named RoundUpWriteTimeOnSync under the HKLM\Software\Microsoft\Windows\CurrentVersion\NetCache key (create the key if it does not exist) and set it to 1.Usual disclaimers apply......source http://blogs.technet.com/filecab/archive/2007/03/16/using-offline-files-with-samba-emc-servers-nas-devices.aspx