This software can be used to control most of the projectors used in the GZI on V2. You will have to authenticate yourself with your TechFak account and your service password, which might also be known as mail or LDAP password. Only tutors and lecturers do have valid accounts.
If case you are not comfortable using web browsers, you can also use the command line tool projectorcontrol on any Netboot powered machine within the TechFak.Load Control Logout
Reload the page or select the projector again once it turned off (you will hear when cooling is done).