Originally Posted by pevans_om
SP2 made changes to how textures on aircraft are handled. What you're seeing is aircraft previously designed for FS9 which aren't 100% FSX compatible.
Thank you Paul, at least you don't blame SP2 or DX10!!!
It is not true that SP2/DX10 broke many add-ons; what is true is that those add-ons were not made with the latest SDK Service Pack, or it might be a mix of FSX/FS9 SDK. FS9 scenery in FSX is out, it is like putting a Briggs & Stratton in a C172.
About the negative stuff you hear. Designers of note are keeping up to date with what has been going on in the ACES camp, they know about most of the developments. To save them from designing under par add-ons (and red faces), they held back on their work. Some smaller payware/freeware developers took the gap, offered to them by RTM's (and in a way SP1's) 'backward compatibility and produced add-on aircraft and scenery. Most of this stuff was modified FS9 SDK type of add-ons and although you could see and use it in FSX, it did more harm than good. However, SP2 removed most of the 'backward compatibility' and many of these add-ons are now broken.
One can only achieve 'backward compatibility by keeping old redundant code in an application. There are still some FS4 code in FS2004, code which is more than 14 years old!! ACES have to move forward and in order to do that, they must remove the old code. If you remove old code, you remove 'backward compatibility and that is what most people see. Suddenly, Their costly payware add-ons becomes useless and it bombs the game out. They now place the blame on FSX, instead of placing it directly on the designers that are giving/selling you rubbish.
Remember what Phil Taylor, from ACES, is trying to warn us about
"FSX-SDK content will work, content using old SDK features will not
SP2 SDK update has only been out about three weeks, give the designers some time, they will bring out FSX add-ons. And obtain a written guarantee
from the designer where they state that the add-on were made using the latest SP2 SDK content.