Thanks a lot for your answer.

I tried to make a test class programmatically :

DEFINE CLASS test_class AS custom OLEPUBLIC
PROCEDURE Init
SET EXCLUSIVE OFF
*SET DATASESSION TO 1
USE C:\TEST1\TEST.DBF IN 0 SHARED
ENDPROC

PROCEDURE INSERT_RECORDS
FOR i=1 TO 1000
INSERT INTO TEST VALUES (i,ALLTRIM(STR(i)))
ENDFOR
ENDPROC

ENDDEFINE


From the VFP command window I called the method INSERT_RECORDS as follow :

OX=CREATEOBJECT('PROJ1.TEST_CLASS')
OX.INSERT_RECORDS

Everything is ok

Then I opened another VFP and i tried the same thing but I get "File is in Use"

How can I make the class as session ?

Thanks again for your help

Peter