Symantec WINDOWS INSTALLER EDITOR 7.0 SP2 - REFERENCE FOR WISE INSTALLATION STUDIO V1.0 Installation Manual page 219

Windows Installer Editor Reference
WiseScript project file (.WSE)
When you select the option on the Build Options page to install the .MSI into an SVS
layer, a WiseScript project file (.WSE) is created, which when compiled creates the
.EXE wrapper. You can edit this .WSE file from the Prerequisites page.
See Editing the WiseScript That Creates the Installation .EXE
In addition to the logic needed to install the .MSI into an SVS layer, the WiseScript
file contains installation error messages and the installation's maintenance mode
dialogs. The maintenance mode dialog boxes appear when the end user clicks the
application's Change/Remove button in Add/Remove Programs.
See About Maintenance of an .MSI Installed into an SVS Layer
Note
Only English is supported for any dialogs that are controlled by this WiseScript file.
SVS Driver runtime
The SVS Driver runtime (an unlicensed version of the driver) or a compatible
version of the SVS Driver must be installed on the end user's computer to install the
.MSI into a layer. When you select Install the .MSI into an SVS layer on the Build
Options page, the SVS Driver runtime is added to the installation on the
Prerequisites page. If you clear the SVS Driver option on the Prerequisites page and
the end user does not have a compatible version of the SVS Driver installed, then
the .MSI is installed normally and not into an SVS layer. You can include the SVS
Driver runtime with your installation or have it downloaded when your installation
runs.
See Adding the SVS Driver Runtime
The SVS Driver runtime does not appear in Add/Remove Programs on the end user's
computer. The end user can remove the SVS Driver runtime by using the following
command line: Msiexec.exe /x {7D8DBB7C-1C55-4950-A107-043C164F379A}.
Warning
If the end user removes the SVS Driver runtime, any application that is installed
into an SVS layer will become non-functional.
You can download the latest SVS Driver runtime from the Help menu of WiseScript
Package Editor or Virtual Package Editor.
See Updating the SVS Drivers in the Virtual Package Editor Help and
Application Runtimes on page 27 in WiseScript Package Editor.
Exclusions
When you install an .MSI into an SVS layer, you should also specify on the Build
Options page the end user data files that should be excluded from the SVS layer.
You exclude files so that end users data files are not lost when the application is
reset from Add/Remove Programs.
See About the Exclusion of Files on the Build Options Page
Execution of .EXE wrapper
When an end user runs the default WiseScript .EXE wrapper that is generated when
the .MSI is compiled, the .EXE wrapper does the following on their computer:
Determines whether the Virtual Software Package (VSP) is already installed. If a
VSP with the same GUID is already installed, a message informs the end user
and the installation ends.
Organizing Your Installation Into Releases
on page 223.
on page 220.
on page 227.
on page 221.
Downloading
219