there is a main filemaker database, when startup, it must perform a script from other filemaker file,the second has password because it shouldn't open lonely, but when the script performed from main file, i want to login to the second without any dialog, and i want open it with script, and write its username and password manually in startup script. how can i do that?

You cannot.

You need to have the same username/password in all the files so they can open each other up.

You couldm for instance, set them up so the other files are opened with minimal privileges, just enough to do what's required by the script.

Embedding passwords in scripts is a pretty major security risk, and it negates having the security there at all. Like locking your house but leaving a key under a rock in the garden.

thanx Vaughan