You can call this a Directory of which programs are where. If these paths are not correctly stated programs will fail or "get lost". WinMaximizer will search and fix these errors and make sure they are written correctly in the Application Paths. Note: by fix we mean delete the missing path. Registry programs remove items that do not map back pysically to paths, etc. They do not repair in the sense of making a bad path somehow work. If the path does not exist, the item is removed. This has the effect of preventiong potential errors that can slow down and even cause programs to crash.