secure resources into standalone application

Hello,

I'm working on a PC application, and i've got lot of resource files (xml, pictures, videos...) . I deploy the app in standalone, so my folder look like that :

- MyApp.exe
- MyApp.swf

Adobe AIR

META-INF

Resources

I'm looking for a way to securise my resources folder.

I try for example, to package all my resources in a zip file and rename it without extension - yeah, i'm looking for that kind of "security"- , then load it at launch, but it's impossible to do that wtith a ~800Mo file.

Does anybody have an idea to easily securize my app ?