Here's a batchfile I use at home, and have used for clients under similar circumstances to your own.First, you have to create the backup set in ntbackup. Then schedule it. Open the scheduled backup to copy the command line from it to use in the backup batchfile.
***begin batchfile***
@echo off
rem clear mapped network drive to destination (backup) folder
net use w: /d /y
rem map network drive to backup folder on server
net use w: \\server\username /persistent:yes
rem perform the backup
C:\WINDOWS\system32\ntbackup.exe backup "@C:\Documents and Settings\username\Local Settings\Application Data\Microsoft\Windows NT\NTBackup\data\Daily Backup.bks" /n "Daily Backup.bkf created 6/6/2005 at 11:04 AM" /d "Set created 6/6/2005 at 11:04 AM" /v:yes /r:no /rs:no /hc:off /m normal /j "Daily Backup" /l:s /f "C:\Backup\Daily Backup.bkf"
rem copy the backup to the server
xcopy c:\backup\"daily backup.bkf" w:\ /y
rem release mapped drive
net use w: /d /y
rem exit the batch file
exit
***end batchfile***
You would change the line mapping the drive to reflect your shared (destination) folder:
\\server1\D:\SCbackup
Note: You shouldn't need drive letters in your mapping as you shouldn't have more than one shared folder of the same name on the same server, regardless of number of available drives. This is to avoid confusion. So the mapping should look as follows:
\\server\SCbackup
One thing to note, in my batchfile I have it release the mapped drive first, then map it and release it again at the end of the batchfile. I've found windows tends to behave erratically at times with mapped drives and found this the best way to ensure a consistent drive mapping.
You will also have to tweak the path in the xcopy command to reflect the location of your backed up file.