Consider the following points when upgrading from Trend VCS 1.8x to Control Manager 3.5 server:
The Control Manager 3.5 installation detects an existing copy of the Trend Virus Control System, and gives you the option to upgrade it to Control Manager
Upgrading your Trend VCS system to Control Manager automatically upgrades the Trend VCS agents on your system to Trend VCS agent version 1.86
Upgrading your Trend VCS system to Control Manager disables Trend VCS files and Registry settings, that is, the upgrade will not uninstall Trend VCS components
This occurs if you install Control Manager on a Trend VCS machine. If removing Trend VCS after installing Control Manager, the Trend VCS removal routine will modify the Internet Information Server (IIS) settings in such a way that will disable Control Manager. To fix this, run SetupPatch.exe.
Refer to Planning the Trend VCS 1.8x and Control Manager 2.5x agent migration for details on how to conduct Trend VCS 1.8x agent migration.
Separate Trend VCS servers handled the control functions that restricted user access to specific segments of the antivirus network. Now, new Control Manager access control features combine these control functions into a single Control Manager server.