If this is anything like the software that I have installed before it is even worst than the Jens,

Each teacher not only has their own folder within the directory structure, but the each of the classes they teach (like in high school they would have 5 classes) would have a seperate grade book within that folder.

Some of the company's that make educational software (grade books, attendance etc) have no concept of how to make anything network ready.

I remember many a program that "had" to be installed, and the program would not work unless "everyone" had full permissions to the install directory.