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#1
I don't use the backup tool, but suspect that there's no direct way to launch that box - it has to be launched by running the backup program.
Found this at the following link ( Vista File Backup can not find drive after change of media (0x81000006) ) - search for the string below to find the exact context:
Code:%systemroot%\system32\rundll32.exe /d sdengin2.dll,ExecuteScheduledBackup