i am runing this software on single machine.
i am using a procedure file to use my dbf files like below :

procedure usefile
****
para filename
if !used(filename)
sele 0
use (filename) excl
endif
sele filename
set filt to
set order to
set rela to
******

some files i used in my main.prg
like :
=usefile("customer")

now i changed my form datasession to private and using the command to
open my dbf files in load event of form
like :
=usefile("customer")

error "file is in use"

please help me

warm regards,
mk.