Flash Secure Optimizer (FSO) is a software that can protect ActionScripts and compress SWF files. For protecting ActionScripts inside SWF file, FSO uses one of the best well know methods that is, Identifier Renaming (Identifier Obfuscation). FSO Reads SWF file and retrieves all identifiers and smartly converts identifier names to meaningless characters. FSO lets you reduce SWF file size by compressing/optimizing most parts of SWF file. FSO provide you simple custom user interface you have only some clicks to protect/optimize your SWF files.