Isolation modes are probably the most important feature of ThinApp and therefore one of the most interesting in my opinion. When it comes to configuring your packages, isolation modes are of course a centerpiece.
When I create a ThinApp package, I always start using WriteCopy as my default directory isolation mode. This way all changes I do during my test runs will end up in the sandbox. This is important because it lets you get to know the behavior of the application, that is, learn what will end up in the sandbox. Why this is important we will discuss in more detail in the next chapter. When I'm ready to compile my production ready package, I usually change the default directory isolation mode to Merged. This way, the package will act like a natively installed application. It will for many locations honor the permissions specified on the client OS. For example, if a user tries to save a document in the root of the C:, a denial dialog box will be displayed to the...