In the following article you can Learn how to easily enable the Adobe Connect HTML client both for administrators and hosts.
Don't forget that Only a member of the Administrators group can enable or disable the Adobe Connect HTML client for participants for the entire Account.
How to enabling the HTML client for an account?
First you have to Log in to your Adobe Connect account as an administrator, and click the Administration tab.
Then, Click the Compliance and Control sub-tab.
Open the settings for the HTML client.
Select the options to enable the HTML client for meetings, virtual classrooms, and webinars.
Don't forget to Save the settings.
How to Enable HTML client for a room?
Open the Edit Information tab for the virtual classroom, meeting, or seminar room.
Then, select Enable HTML client for participants to enable HTML client for the room.
How to Enable HTML client option - Joining the room with the HTML client
Don't forget that At least one host is required with the Adobe Connect desktop application to open and manage the room.
The participants can access a live session using the HTML client, even if they do not have Adobe Flash installed or disabled in the browser.
Access the room as a participant from a computer where Adobe Connect desktop application is not installed. You can view the revamped Adobe Connect login page.
HTML client login screen
Join as a participant. If you see something similar to the following screenshot, you have succeeded in launching the HTML client.
In case you need better preview of the explanation above, please check the video below