UnlockSWF is a 32 bit Windows application that can remove/reset or add 'Protect from Import' option, remove/reset or add 'Debugging Permitted' option from/to SWF files. Unlock SWF can open compressed SWF files and save a SWF version 6 file compressed or uncompressed.

When exporting a movie with Macromedia Flash, you are given the option to 'Protect from Import' the SWF, optionally with a password. Flash will not import an SWF which has been exported with this protection or ask for a password before importing. When you lose your source FLA, generally you have the SWF on the web, but if you have exported with protection, you'll not be able to import it without unprotecting it first.

UnlockSWF lets you remove the protection from a SWF file or remove the protection password option (Flash will not ask for a password and will not import the SWF). You can also add protection to an unprotected SWF (Flash will not import the SWF).

UnlockSWF also lets you remove the debugging option (Flash will not debug the SWF), add the debugging option with empty password (Just press enter when asked for password and Flash will debug the SWF) or reset the debugging option password to empty string (Just press enter when asked for password and Flash will debug the SWF).