You control the behavior of remote features in Dynamic Environment Manager by creating a Horizon smart policy.
You can create policies for user environment settings that control a range of behaviors. Horizon Smart Policies for user environment settings are applied during login and can be refreshed during reconnect of a session. To reapply Horizon Smart Policies when a user reconnects to a session, you can configure a triggered task. See the complete list of policies in the topic "Configure Horizon Smart Policies for User Environment Settings" in the VMware Dynamic Environment Manager Administration Guide.
In general, Horizon smart policy settings that you configure for remote features in Dynamic Environment Manager override any equivalent registry key and group policy settings.