Hi kglad,
Thanks for the reply. I checked the link you provided, but I did not find any 'Cross security sandbox' related settings there. In that link, these are the settings I can change:
Global Privacy Settings
Global Storage Settings
Global Security Settings
Global Notifications Settings
Website Privacy Settings
Website Storage Settings
Protected Content Playback Settings
Peer-Assisted Networking Panel
And by the way, I think these settings are related to flash player and my application is AIR based, I even did not have flash player installed in that PC. Anyways, I tried making changes in those settings, but no luck... It stills shows the same error (either http status 500 or 2038)... any other idea??