Adobe Connect

Most of Adobe Connect can be accessed using your web browser, no need to install anything. There is a desktop application that can be used for joining live sessions, but it is only really required if you are going to need to share you screen. If you aren't doing that, joining in the browser should be fine.

What exactly are you trying to install? The Adobe Connect App can be installed from here: https://helpx.adobe.com/adobe-connect/connect-downloads-updates.html#Application

When you ask a question you need to provide some basic information
-Forum quick start https://community.adobe.com/t5/Community-Help/ASK-Forum-Success-Guide-Efficiently-using-the-forums/td-p/4791542
-https://community.adobe.com/t5/Get-Started/Questions-you-need-to-answer-to-receive-better-help/td-p/6199470
-https://community.adobe.com/t5/get-started/how-to-post-and-get-your-issue-resolved-or-what-do-you-need-to-know-to-solve-my-issue/td-p/11178657?page=1