I made a program using Dev-C++ compiler, then I zipped it using WinZip 32. I did all of this on my Windows 2000 OS. Then I unzipped it on my friend's, computer(Windows XP.). And a Dialog came up that said that the program that I was trying to unzip does not have a sig. It asked me it I was sure that I wanted to continue. I said yes and it worked. But the dialog also said that it didn't know if my program was safe or not because it didn't have a sig. My question is, how do you add a sig to your program? Do I put it some where in the script, or is it some kind of project option?