I'm able to backup single mailboxes fine if I enter MSEXCH:MB/User in the save set box. I created a file named bricklevel.txt to test the input file option. I saved the file to c:\program files\nsr\bin. In the remote tab for the client I have the backup command nsrxchsv.exe -I bricklevel.txt. All savesets report as successfull, but one line reads: exch-server:MSEXCH:MB Error opening file: bricklevel.txt. Any suggestions on how to make this work?? Thanks.