Hi,

> but this is what is happening:
> C:\Program Files (x86)\Firebird\bin>gbak -c -v -user SYSDBA -password
> masterkey c:\temp\retdata.bak
> c:\temp\test.fdb
> gbak: opened file c:\temp\retdata.bak
> gbak: cannot open backup file C:\temp\test.fdb
> gbak: Exiting before completion due to errors

try using TCP:

gbak -c -v -user SYSDBA -password masterkey c:\temp\retdata.bak
localhost:c:\temp\test.fdb

and make sure the user running firebird server (service) has write
permissions to c:\temp


Regards,
Anderson Farias