Pitter

Tks for the replys. @Ron I hope that I understand you correctly. First, I found that I have no such programm called MakerWys in my FSX nor RC4 Folder. I got that, installed in FSX main folder and executed. Checked FSX main folder: r4.csv 04.12.2015 14:11 4500KB, r5.csv 04.12.2015 14:11 4615KB rcv4/DATA r4.csv 18.09.2005 09:34 4682KB Then I executed scenery rebuild via RC4 button. Only the same messages as above in my first post. Nothing about MakerWys. After that checked again r4.csv, r5.csv and rcv4/DATA r4.csv, all unchanged Peter

I made 5 flights today, without any problem. When I start Radar Contact for flight 6, I got in the flightplan window (left next to "StartRC" button): "to @0 (Alt1-, Alt2) / RVSM" No flightplan at all Also "Rebuild Scenery" is not working. It says only: RC rebuilding r4.csv, running and RC finished rebuilding r4.csv and RC rebuilding new a4. csv file and RC finished rebuilding a4.csv. No word about rebuilding scenery database completed or successful or something like that. (I do not remember the right words) I can also not reload those 5 previous plans. Flightplans are made with FSC Any help appreciate Peter

Thks for the quick response. @Delta6295, tks for the link, but maybe later @ronzie. Ron, I downloaded the file, unzip and put in WOW64. After that, register the file did not work. The only way was recommended by Boeing 737-800,: de-register and after that register again. Both of them are comfirmed by a small blue popup. So, the key request is on his way. Hopefully the probs are now ended. A big thank you to all, specially Boeing 737-800 for his post Peter

or one of its dependencies not correctly registered: a file is missing or invalid That is the full msg which I got after many years of trouble free use first time reinstall RC4 and before I can request a reg key. If I click on the green RC button, this msg come up. can someone help me please Peter FSX, Win7/64 Registerd FSUIPC