...WOW! Good evening! I found the folder at this way, executed it with the FSX-exe.... - and: BUFF stands on the Runway KNKX, engines running, then chosed another Airport in my Region - and it was successfull!
But - as expected  8-) :( 8-) - after one minute of flight - the 4 GB threshold. [smiley=wallbash.gif]
Admitted - simulating flight over a very spectacular scenery - the annoying FSX-Problem.
Thank you very, very much for the patient support! :D
(Now i try to start the engines manually - it has to work....)