Thanks for all the replys I got regarding my problem with the scheduled backup 
of exchange.
The problem was fixed when I removed the environment variable DSM_GDIR = 
C:\WINNT\SYSTEM32 and I also moved 
the ADSMV3.DLL to the ADSM client directory. I installed the ADSM Client 
3.1.0.6 and the exchange agent 1.1.0.0 without setting the variable DSM_GDIR = 
C:\WINNT\SYSTEM32  or moving the ADSMV3.DLL to the system32 directory.
Is this something to watch out for with the new client ?
I also copied this proceedure to backup the SQL Servers wich didn't like the 
\DSM.OPT definition in the path and I had to remove the backslash.
We also use filespace queries to verify the succesfull backup of all nodes and 
the exchange agent node doesn't have an entry in the                            
                       Last Backup Start Date/Time - 
                                                            Last Backup 
Completion Date/Time - 

We checked the exchsched.log and confirmed that the backup completed 
succesfully.

All other backup clients including SQL nodes report a start and completion when 
succesfull.
Is this a client 3.1.0.6 problem or a exchange agent problem ?

Thanks again for your help and I hope this may help others.


Leo Humar
LCS Pty Ltd
lhumar AT vic.bigpond.net DOT au