We've developed an application which has been in production for several months.

What we're faced with now is supplying enhancements and upgrades periodically.

My questions are:
How do we go about creating new releases so that only the .exe and possible the .dbc are updated?

Can we just use the setup wizard again with only the updated files? If so, how do we determine where the application was previously installed?

If we have some base tables which have changed, how do we get those changes into the users dbfs without losing any existing data?

Soon we'll be looking at these issues for many different installed locations and we need to be able to just give a new upgrade installation set to these users.

thanks, kim