Some Flash files are secured with passwords or encrypted and this makes them difficult if not impossible to work with. In case you come across this type of SWF files and you need to edit them, you will definitely need a specialized tool just to remove the protection.
FlashIt! - Macromedia Flash Deprotector is one of the utilities that may very well fit the bill in this respect. Very lightweight and without requiring installation, the software is ready to run right out of the box and take out the restrictions on Flash files.
The interface is as simple as it can get because you just have to click a single button to load the target SWF and the application will take care of everything, no settings to tinker with and no complex configurations.
Besides selecting the file to be processed, there's only one other thing you need to take care of and it's the output location. This is because FlashIt! - Macromedia Flash Deprotector cannot overwrite the SWF it is currently working on and requires you to at least rename the decrypted file.
The program works by decoding the protected header of the Flash file or by getting passed the password if one is present. In case there is no valid header or passkey to decode, the utility will give out a notification and end the current job.
Given the great ease of use, FlashIt! - Macromedia Flash Deprotector is suited for all users. You don't need to configure anything, just unpack the archive and run the application to remove the protection and make it suitable for editing with a dedicated software.