Updating the ThinApp runtime
You can update the ThinApp runtime embedded in the packages. You can rebuild your project folder using a new ThinApp version, or you can use the tool relink.exe to update the runtime. relink.exe does not require the project folder. It will apply a new runtime directly into an existing package. There's rarely any need to update the ThinApp runtime. Normally, you don't need to update your packages when a new ThinApp version is released. But when ThinApp 4.5 was released, one of the big new features was Windows 7 support. Old packages had to be updated in order to work on Windows 7. Windows 7 (and Windows 2008 R2) was a major recoding of the operating system with many Windows API changes, and therefore the ThinApp runtime had to be updated. There is no telling whether the future Windows versions will force you to update runtimes for existing packages or not. Other than for operating system support, you may also want to update the runtime because you want to change...