Hello there,the FSX SDK shows the usage of the GAUGE_HEADER_FS700 macro, while the gauges.h shows that there is a GAUGE_HEADER_FS800 entry.Which one should I use?Thanks in advanceStefano

ACES was nice enough to modify the FS700 macro so it actually defines an FS800 header.

IOW, continue using the FS700 header in your code... ;)

Thanks for your replies, guys.stefano