dxr_cracker_defense

cracking dxr: contra If you really want to protect the file, first embed it as an aif in the Director file (without linking it as external media). Save and protect the file, and then your problem is to prevent someone from "cracking" your dxr. To "crack" a dxr, you have to open it as a MIAW first. (Unless one of you knows a different way...) To prevent someone from opening it up as an MIAW, set up your file so that when YOU open it you pass it a secret code of some type. For instance, when you call the movie, you could do this global gCode on mouseup set gCode = #xxoo010101010xxyyzz go movie "myMovie" end mouseup When the target movie containing the aif is opened, have it check for the correct code in this variable. You could use the preparemovie or startmovie handlers, or also the activateWindow handler for MIAW. global gCode on startmovie if gCode = #xxoo010101010xxyyzz then go frame "myframe" else -- do something nasty end if end startmovie If you pass the code to the movie, it will run normally (as YOU the programmer want it to). If you don't pass the code to the movie, then the default should be something nasty: restart the user's machine, use downloadnetthing in an endless repeat loop to copy a million files to his hard drive, etc. (You could also set up a check to see if the file has been copied from the read-only CD-ROM. Try to write a file to somewhere in the moviepath with fileIO -- if it works, then the file is no longer on a read-only disk, and thus you could erase the aif cast member from the movie. This only leaves the cracker the choice of opening the file as a MIAW from the CD-ROM -- and the trick above ought to take care of that...) In sum, the best defense is offense. Make the first time the cracker attempts to open your file so unpleasant that he won't even bother to try a second time. Keith Seward