Act! Pro v18 Product Downloads (Europe and UK)
Note: Act! v18 Hot Fixes apply to Act! Pro, Act! Premium, Act! Premium (access via web), and are applicable to all locales, including Europe, UK, Australia, Canada, U.S. and Latin America. Updates are cumulative; just install the most recent update file to bring your copy of Act! up-to-date. Visit the Act! Knowledgebase to see what’s new in each release.
If you are running Act! software on Windows Vista or Windows Server 2008, follow this link and install the update provided to support installers that are signed with SHA2-type certificates.