Good question. I have run into several apps that will not run or will not run correctly under any account other than admin. Companies that produce apps design for one particular industry play by their own rules because they have a captive market. One example is PC Miler, a program used by trucking companies. Working with tech support, we we able to almost get it to work under a user account, after fighting a multitude of issues, we were left with an error message when the program was exited. As far as the powers to be were concerned, this meant that the app was broke when run under a user account which made it totally unacceptable. a senior tech with ALK told me confidentially that the only way these issues would be addressed was if they began to affect the bottom line. He said there wasn't a prayers chance in hell of this happening because people who run businesses were too stupid to see past a simple solution such as run it under an admin account. I agree with him because that's exactly what was decided. Even tho I tried to point out that this was a security risk. They said we'll talk about it when it causes a real world problem.