I have been looking for information about Install Shield Express behaviour when installing updated dll's.

Does it overwrite old dll's?
Does it warn you first?
How do you control the behavior?

Background: I have created an install that lays down the basic VFP support libraries and the odbc driver for VFP. I want to add the dll for SQL server too, but I want to make sure this is working before I add that in.

Any info about how it behaves would be great.