When running the WorkgroupMail setup file the setup of another program is launched.
This problem can occur as the result of a bug in Winzip.
Right click on the WorkgroupMail setup file that was downloaded and select ‘extract to…’ or ‘open with Winzip’. Note, you will need to have winzip installed on your computer. Download this from www.winzip.com . You can then manually extract the installation files to the folder of your choice. Run the setup.exe program to install WorkgroupMail.