Flatten surface for new airport

Hi,

Have installed new airport using AFCAD. Although I used the correct surface altitude some areas are lower or higher and my new runways float in the air or sink into ground. I did some research and understand there is a 'flatten switch' available to level the designated surface polygon. However I can not find any program. Any ideas would be appreciated.

Thanks

Try this.

http://library.avsim.net/search.php?SearchTerm=FlatteX&CatID=root&Go=Search&Cookie=1

Thanks for response.
Have dowloaded the Flatten but the program FlattEx needs the "MSVBVM60.DLL" library and the "COMCTL32.OCX" control. I have Vista Home Premium 64bit system and cannot find anywhere any compatibility with above files. The files show up in MS downloads but are only up to W XP. Also can see some problems mentioned related to Vista tolerating these files. Any other help would be much appreciated.
Thanks again.

If the author (designer) of that app didn't make it clear if it'll run in a 64bit system why not email him and ask.
I find that most people who build freeware enjoy some feedback for their work.