The upgrade path for BrowseControl v3.X to v4.0 is slightly different due to the redesign of the software.
In order to upgrade, you must uninstall your existing BrowseControl Server, Console and Clients before you can install version 4.0.
In version 4.0, we have completely redesigned the database in the backend and integrated our solutions into one single console. Before you upgrade, please make a back up of your BrowseControl database: C:Program Files/Codework/BrowseControl/BCServer/CWBCFBDB and export your Allowed/Blocked lists before you perform the upgrade.
Please follow the upgrade steps available on this page: http://www.currentware.com/browsecontrol/upgrade/
In version 4.0, the blocking of USB/DVD devices and power management has been migrated to our other solutions. Keep in mind that those two features will not be available in BrowseControl v4.