Hi,

>At this moment i'm trying to do that, but now the problem is that in have about 800 tables and thousands sentences use in my system. now i´m trying to "capture" when i use a table and when i use in a table and write it on a log

I think you should be able to use the DBC events to get notified when a user opens and closes a table. In the AfterOpenTable event you could add a record to a table that contains the table name and the user name. Keep this record locked. In the AfterCloseTable you can unlock this record and delete/blank it.

In your monitoring tool, you can display this log table. To verify if the user is really still working on the table, you can attempt to lock the record. If it became available, the application terminated unexpectedly, otherwise it's still running.