Hi there :)
I'm using Bacup Exec 2010 R2 version 13.0 rev. 4164 x86. It's able to complete most jobs - with Exchange 2003 as the exeption. It runs through the backup and actually completes. But the job fails with this message:
e000fe49 - An invalid parameter was specified.
AOFO is off, granular backup is also off. It's an Echange-only job.