Scrollbar within an AfxMessageBox

[VictorN]

... but instead of beginning a newline there is a black |.
This is of course not what i want ?!

You sould use two symbols CR LF ("\r\n") to force the text in the edit control to go to the new line.

second question:
Can anybody give me another possibility to show my (very very long message) ?

Again: who is supposed to read such a "very very long message"?
Almost no one ans Alin already poined out, would do it!