Shut down jboss and then read the server.log in /logs directory...it is the more detailed output that you see flashing by on the screen and in WordPad, you can scroll. the problem is with Win 98...at work under NT and (of course) under Linux or Solaris this is not a problem.\
You can configure the buffer size of the MS-DOS window by rightmouseclick on the MS-DOS-Image on the MS-DOS-Window TitlePanel (In Properties => Layout).
In log4j.properties, you can configure, which type of messages (INFO, DEBUG) should appear on the console, in the log-file.
That buffer size only works under NT/2K, not 98...
Thanks to all.
Following your instructions, I have seen the server.log file and it works. So I solved my problem (I was desperate).
Thanks for your help,