>pons:
>- Hide all things from user and avoid missing file!
>
>cons:
>- if always change reports/labels format, need all users quit and overwrite the execute file!
>
>What is your preference?!

For reports and labels whose formats you know will be changing, exclude them. If a user overwrites or erases a file, you can always just copy over again, and the user has noone to blame for the inconvenience but himself. I don't know many users who go deleting files in application directories having no idea what they are.