Recommendations for Installing ThinApp
When you install ThinApp, consider the recommendations and best practices for the software.
Using a Clean Computer
VMware recommends using a clean computer to install ThinApp because the environment affects the application capture process. A clean computer is a physical or virtual machine with only a Windows operating system installed. In a corporate environment where you have a base desktop image, the base desktop image is your clean computer. The desktop computer might already have some components and libraries installed.
Application installers skip files that already exist on the computer. If the installer skips files, the ThinApp package does not include them during the application capture process. The application might fail to run on other computers where the files do not exist. A clean computer enables the capture process to scan the computer file system and registry quickly.
If you install ThinApp and capture an application on a computer that has Microsoft.NET 2.0 already installed,.NET 2.0 is not included in the ThinApp package. The captured application runs only on computers that have .NET 2.0 already installed.
Using Virtual Machines for Clean Computers
The easiest way to set up a clean computer is to create a virtual machine. You can install Windows on the virtual machine and take a snapshot of the entire virtual machine in its clean state. After you capture an application, you can restore the snapshot and revert it to a clean virtual machine state that is ready for the next application capture.
You can use VMware Workstation or other VMware products to create virtual machines. For information about VMware products, see the VMware Web site.
Using the Earliest Operating System Required for Users
Install ThinApp on a clean computer with the earliest version of the operating system you plan to support. In most cases, the earliest platform is Windows 2000 or Windows XP. Most packages captured on Windows XP work on Windows 2000. In some cases, Windows XP includes some DLLs that Windows 2000 lacks. ThinApp excludes these DLLs from the captured application package if the application typically installs these DLLs.
After you create a ThinApp application package, you can overwrite files in the package with updated versions and rebuild the application without the capture process.