If you are Updating to the newest version, simply click to download and install in the C:\CallNot folder
Click on the UpdateCallNot.ZIP, then Open or Run to see the following screen.
Click on Unzip to install the upgrade in the default folder.
You will see the following confirmation.
Then you may click on Close.
Don't worry - It will not overwrite your DNC_LIST.DBF which you may have spent considerable time building.