Three installation packages are available:

- Standard MSI Installation: A regular wizard-based MSI installation that includes Prism libraries and executables. This package does not include the Microsoft .NET Framework, therefore it is the smallest package available.   If the .NET Framework is not installed on the computer, the installation will automatically download it from Microsoft and install it.

- Virtualized MSI Installation: A regular wizard-based MSI installation that includes Prism libraries and executables, as well as the Microsoft .NET Framework.  Because it includes the .Net Framework, this installation package is larger than the standard MSI Installation.

- Virtualized Single File: A single executable that runs Prism in a fully virtualized mode and requires no installation.  This package is mainly aimed for working with Prism on a secure computer that does not allow MSI installations to access the resources they require to work.

 

The following table describes the packages and their distinct characteristics:

	Standard MSI Installation	Virtualized MSI Installation	Virtualized Single File
Requires installation of Microsoft .NET Framework (if not installed already)	Yes	No	No
Assigns Windows file associations to PSM extensions automatically	Yes	Yes	No
May require access to system resources, such as the registry	Yes	Yes	No