Start CrowdviewerFS.exe and receive an ID in the brown window.
The person who will provide you with support needs this ID.
You will now be asked if you want to allow this person access to your computer.
If you answer yes, the person can completely control your computer.

Yes, Crowdviewer.exe behaves like CrowdviewerFS.exe in this case.
Crowdviewer.exe just cannot be installed as a Windows system service.

Technical Process of 2FA (TOTP)

1. When 2FA is activated, the application generates a secret.
2. This secret is transmitted to your authenticator app via a QR-Code.
3. The app and the Crowdviewer use this secret to generate time-based one-time codes (TOTP).
4. The codes typically change every 30 seconds.
5. During login, the Crowdviewer compares the entered code with the generated code.
6. Since both sides use the same secret, they can independently generate identical codes.