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[Wolf]

What does this message mean?

File attachments (pictures shown in the text as well as attached text files) can only be viewed by registered (and logged in) participants. A distinction must be made between one-time registration and login: most browsers allow you to set whether the login should be saved (in which case you are automatically logged in when you call up the page) or not (in which case you have to enter your user name and password every time you call up the page).

Registration/login also offers other advantages, such as the "Advanced Search" (in German) in the forum posts or the possibility to send "Private Messages" (in German) to other participants.