Hola Eduardo ---

What flavor of network? I would suggest that you move backup to an automated task under using native backup software and abandon trying to do it in VFP. It's much safer to do it other ways.

>I work with remote views and for the moment I'm using Visual Fox Pro tables for the Back End.
>My system run in a network. It's possible that two or three instances of the program run at the same time.
>For the backup purposes I decided to use Winzip, sending the commands for it.
>The problem I have is that I get messages from Winzip telling me that some files are open. I know the program itself is using those tables. Then I decided to make the backup in DataEnvironment.AfterCloseTables. But this works if you work with only one program running at a time.
>I will appreciate any idea.
>Thank you.