We are required to change the password for access to systems once every 180 days.

I'm investigating the ramifications of changing the password via the Intellisync Mobile Suite Properties via Action>Properties

The Login Id is "dba" - I think this is the default
We have a password assigned.

My question: if we change this password what are the ramification?. Does it change the password that I need to use for the backup using the dbbackup.exe utility? I keep getting an error running the dbbackup.exe utility - "invalid user or password" so I obviously do not know the dba login password - which I think I can change. I do know the sa password but this does not help me with dbbackup.exe either - at least not so far.

Any suggestions?