Adobe Connect Offline Recording Option Captures & Records Local Screen Assets:
While in the process of creating an offline recording in Connect, the recording will capture extraneous desktop application activity if Windows is in Non-Aero mode
To stop extraneous recording, turn on the Aero theme: Control Panel\All Control Panel Items\Personalization – choose any Aero theme.
This workaround will limit the offline recording to the Connect Meeting archive.
Here is the related forum discussion for reference: https://forums.adobe.com/message/6629306#6629306