This is why MultiLoader didn't work in Air. Explanatory comment below.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5397 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/util/MultiLoader.as

@@ -128,6 +128,17 @@ public class MultiLoader
             }
             var l :Loader = new Loader();
             var lc :LoaderContext = new LoaderContext(false, appDom);
+            try {
+                // In Air players, LoaderContext has an additional property that dictates whether
+                // a Loader is allowed to load bytes that contain executable code (SWFs).  Since 
+                // that is the default for non-air runtimes, and that is the expected behavior 
+                // for MultiLoader, we set the property to true if it's found in the current 
+                // runtime's LoaderContext.
+                Object(lc)["allowLoadBytesCodeExecution"] = true;
+            } catch (err :Error) {
+                // throw this away, it merely indicates the property was not found on the 
+                // LoaderContext.
+            }
             // now we only need handle the two cases
             if (source is URLRequest) {
                 l.load(URLRequest(source), lc);