Protect program I like to make programs on my calculator, but I want to protect it so that someone else can't edit it anymore.

If you can upload it to the computer, you can open it with prgm editers, and they should have a selection for protecting the prgm. The editer i used was TI-program editer, unfortunately, new windows updates made that program impossible to use on Windows XP and TI didn't update it or anything so yeah...I don't know about vista though, you can try that. Another way is to open the file through Mirage OS and 'lock' the program. To make basic prgms visible in mirage, simply put a : at the very first line. The problem with this method is that anyone with Mirage can unlock it and change it...