You're download will begin automatically. Below are the instructions on how to use this update:

1. Save and close all open GCK files and quit the GCK application.
2. If you saved any personal files into the main GCK program folder (C:\Program Files\Textco Biosoftware, Inc.\Gene Construction Kit\), move them to another location on your hard drive - or make copies before continuing to step 3.
3. Click on the link to download the new Gene Construction Kit 3.5 installer.
4. Unzip the '.zip' archive of the new Gene Construction Kit 3.5 installer to produce two files (unzip the archive using Winzip or 7-Zip): Setup.exe and Gene Construction Kit.rsr
5. Double-click on the 'Setup.exe' file to launch the new installer. Choose 'OK' and 'Yes' at the prompts to install into the default locations - updating your current version.
6. Launch the updated GCK program and verify the version by selecting 'About Gene Construction Kit' from the 'Help' menu.