working on DB with 2 computers

i made an application ussing sysbase sql anywhere
and i want to use the database from two computers
.but any time one application is working with the
database ,i get a message "This file is already in use" on the other computer.

Probably you're isolation level is wrong.

You can set the isolation level to 'dirty read' if you don't want database locking.

I think the syntax looks like
SET_ISOLATION_LEVEL 0 (for dirty read),
but you should check it in the manuals of sybase

Hope this helps