Novell ZENWORKS APPLICATION VIRTUALIZATION 8.0.1 -... User manual

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AUTHORIZED DOCUMENTATION
ZENworks Application Virtualization User Guide
ZENworks Application Virtualization
8.0.1
August 20, 2010
User Guide

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4ZENworks Application Virtualization User Guide
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7 Novell ZENworks Application Virtualization
2OVERVIEW
Thank you for using Novell ZENworks Application Virtualization!
This product will allow you to convert your Windows, .NET, Java, AIR, Flash, Shockwave, or
other Windows-compatible application into a self-contained virtual application that can be
streamed from the web and run instantly on an end-user device. Unlike traditional deployment
methods, virtual applications do not require reboots, administrative privileges, or separate setup
steps for external components and runtimes. Virtual applications are isolated from other system
applications, preventing DLL conflicts and other deployment nightmares.
This guide explains how to use ZENworks Application Virtualization to create your own virtual
applications and begin enjoying the benefits of this next-generation deployment technology.

8 Novell ZENworks Application Virtualization
2.1 WHAT IS A VIRTUAL APPLICATION?
A virtual application is a virtual machine image pre-configured with all of the files, registry data,
settings, components, runtimes, and other dependencies required for a specific application to
execute immediately. Virtual applications allow application publishers and IT administrators to
significantly reduce the costs and complexity associated with development, setup, configuration,
deployment, and maintenance of software applications.
For example, a publisher of an application based on the Microsoft .NET Framework or Java
runtime engine might create a virtual application combining the application with the required
runtime engine. An end-user can run this application immediately, even if the user has not
installed the required runtime engine, or has an incompatible runtime engine installed. This
improves both the user experience and reduces test and support complexity associated with
deploying the application.
Because virtual applications run in isolated execution environments, it is possible to
simultaneously execute multiple applications which would otherwise interfere with one another.
For example, applications which overwrite system DLLs or require different runtime engine
versions can all run simultaneously on a single host device. As an additional advantage, virtual
applications can provide access to internal virtualized copies of privileged system resources,
allowing unprivileged users to directly execute many applications without security exceptions or
irritating Vista UAC prompts.
Unlike other virtualization systems, Novell virtual application technology:
•Does not require any "player" software or separate installation: Novell virtual
applications are executable files that run immediately on the end-user machine without
changes to system infrastructure.
•Does not incur significant processing or filesystem overhead: Novell low-overhead
virtualization technology allows applications to run with essentially the same
performance characteristics as native executables.
•Does not require any operating system to be installed onto the virtual application: Novell
virtual apps provide all required virtualized operating system functionality within the
internal virtual environment.

9 Novell ZENworks Application Virtualization
2.2 ZENWORKS APPLICATION VIRTUALIZATION FEATURES
OVERVIEW
Use ZENworks Application Virtualization to:
•Create virtual applications that can be streamed from the web: Eliminate long downloads
and installs, and run virtual apps from any desktop with broadband Internet access.
•Create an application as a single executable that runs immediately: Package all
application files, registry settings, runtimes, and components into a single executable that
runs immediately.
•Run Java and .NET without separate runtime installations: Java and/or .NET-based
applications run immediately, with no separate installation steps or runtime versioning
conflicts.
•Improve desktop security: Execute your applications without granting administrative
permissions to end-users. Stabilize desktop images by deploying applications in
sandboxed virtual environments.
•Eliminate third-party setup dependencies: Integrate third-party components, COM/VB
controls, and content viewers such as Acrobat, Flash, and Shockwave, directly into your
application.
•Eliminate Vista UAC prompts and compatibility errors: Deploy Novell virtual apps
regardless of access to privileged system resources, relieving users of annoying Vista
UAC prompts.
•Leverage Terminal Services and Citrix investments: By isolating applications from global
resource areas, Novell virtual application technology allows non-compliant
applications to function properly in Terminal Server and Citrix environments.
•Deploy instantly on USB drives: Improve mobile worker productivity by placing your
Novell virtual application onto a USB flash-memory drive. Run your application
immediately on remote PCs, with no installation steps, administrative privileges or driver
installations.
•Dramatically reduce test and support costs: Eliminate versioning conflicts, dependencies,
and "DLL hell". Reduce test complexity and eliminate support requests associated with
dependency installation and inter-application resource conflicts.

10 Novell ZENworks Application Virtualization
2.3 DO NOVELL VIRTUAL APPLICATIONS REQUIRE ANY DEVICE
DRIVERS?
No. Novell virtualization takes place entirely in user-mode, so no device drivers are installed or
required.

11 Novell ZENworks Application Virtualization
2.4 HOW IS NOVELL VIRTUALIZATION DIFFERENT FROM
HARDWARE VIRTUALIZATION?
Unlike hardware virtualization systems such as Microsoft Virtual PC and VMware, the Novell
application virtualization system virtualizes only those operating system features required for
application execution. This allows virtualized applications to operate extremely efficiently, with
essentially the same performance characteristics as native executables.
Advantages of Novell virtualization over hardware virtualization include:
•Optimal performance: Novell virtual apps execute at essentially the same speed as
applications running natively against the host hardware, with only a small additional
memory footprint. By contrast, applications running within hardware-virtualized
environments experience significant slowdowns and impose a large memory footprint
because the virtual machine must include an entire virtualized host operating system.
•Dramatically reduced application size: Novell virtual apps require a disk footprint
proportional only to the size of the virtualized application, data, and included
components. As a result, Novell virtual apps are typically small enough to be
conveniently and quickly downloaded by end-users. Hardware virtualization requires
an entire host operating system image, including many basic subsystems that are already
present on the end-user device. Each virtual machine may occupy several gigabytes of
storage.
•Ability to run multiple virtual applications: Because of low-overhead characteristics, it is
possible to run multiple simultaneous virtual environments per processor. Conversely,
due to the high overhead of hardware virtualization, only a very small number of
hardware-virtualized environments per processor can be run.
•Reduced licensing costs: Novell does not require the purchase of separate operating
system licenses to use a virtual application. Hardware virtualization systems require a
host operating system in order function, possibly imposing additional licensing costs and
restrictions.
Hardware virtualization may be appropriate in certain specialized scenarios, including:
•Non-Windows operating systems: Novell virtual apps run only on the Windows operating
system. Hardware virtualization can execute any operating system compatible with the
underlying virtualized hardware, such as Linux.
•Kernel mode virtualization: The Novell Virtual OS only virtualizes user-mode operating
system features, whereas hardware virtualization systems emulate the entire OS stack,
including kernel mode components. Applications requiring device drivers or other non-
user-mode software may require a hardware-virtualized environment to function
properly.
You should carefully evaluate the advantages and disadvantages of different virtualization
approaches before deciding on a technology to adopt for your deployment scenario.

12 Novell ZENworks Application Virtualization
2.5 WHAT PLATFORMS ARE SUPPORTED?
ZENworks Application Virtualization supports the following platforms for virtual application
build, snapshotting, and execution:
•Windows XP Professional
•Windows Embedded XP
•Windows 2000 Professional
•Windows 2000 Server
•Windows Server 2003, all editions
•Windows Vista, all editions
•Windows Server 2008, all editions
•Windows 7
ZENworks Application Virtualization supports these operating systems running within VMware
and Microsoft hardware virtualization and hypervisor environments.
ZENworks Application Virtualization also has limited support for the Windows Preinstallation
Environment (WinPE), though certain applications depending on operating system features
unavailable in WinPE may not function properly.
ZENworks Application Virtualization creates 32- and 64-bit executables. Both 32-bit (under 32-
bit mode) and 64-bit executables can be run on x64-based platforms.

13 Novell ZENworks Application Virtualization
2.6 WHAT APPLICATIONS CAN BE VIRTUALIZED USING ZENWORKS
APPLICATION VIRTUALIZATION?
ZENworks Application Virtualization and the Novell virtualization engine support most major
Windows desktop applications. However, certain applications- by their nature- are unsuitable for
virtualization using Novell's user-mode virtualization technology. These include application
features which contain or directly depend on interaction with specialized kernel-mode device
drivers or other kernel-mode extensions; operating system components and extensions; anti-virus
applications; and kernel event filtering, monitoring, and intrusion detection applications.
Novell applications are compatible with most major anti-virus, runtime, and security packages
currently available.

14 Novell ZENworks Application Virtualization
3GETTING STARTED
This section describes the system requirements for installing and running ZENworks Application
Virtualization, provides an overview of the ZENworks Application Virtualization user interface,
and walks you through the basic steps of creating a virtual application.

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3.1 SYSTEM REQUIREMENTS
ZENworks Application Virtualization requires a Windows XP, Windows 2000 edition, or higher
operating system. The ZENworks Application Virtualization graphical interface assumes a screen
resolution of at least 800×600, although a screen resolution of at least 1024×768 is highly
recommended.

16 Novell ZENworks Application Virtualization
3.2 CONTROL PANEL OVERVIEW
The ZENworks Application Virtualization control panel allows you to configure your virtual
application filesystem and registry, embed external runtimes and components, take snapshots of
the application, and create virtual application executables. The primary interface consists of
a ribbon bar and several panes grouped by a functional area.
Located above the ribbon bar are:
•The Start menu button- located in the circle on the top left of the window- allows virtual
application configurations to be imported, opened, applied, saved, and closed.
•The Options bar provides ZENworks Application Virtualization interface customization
options, and the ability to install license certificates
•The help bar provides access to the ZENworks Application Virtualization documentation
and knowledge base, including a searchable version of this document.
The ribbon bar accesses common ZENworks Application Virtualization features:
•The Virtual Application tab provides access to the snapshot and build features, as well
as output configuration options such as the startup file, output directory, and diagnostic-
mode selection.
•The Runtimes tab provides a selection of auto-configurable runtime engines which can
be embedded into your application with a single click. These include .NET Framework,
Java, Flash, and Shockwave runtimes.
•The Advanced tab provides advanced ZENworks Application Virtualization functions
such as Platform Merge, and allows you to create license certificates and application
configurations
Functions in the main panel are accessed by clicking the appropriate buttons along the left side of
the interface:
•The Start panel displays the latest ZENworks Application Virtualization news, including
updates, available licenses, and usage suggestions.
•The Filesystem panel displays the application virtual filesystem, and allows adding and
removing virtual files and directories.
•The Registry panel displays the application virtual registry, and allows adding and
removing virtual registry keys and data values.
•The Settings panel allows configuration of virtual application metadata, startup image,
and process configuration options.
•The Components panel allows layering of external virtual application components, such
as toolbars and optional features.
•The Setup panel allows configuration of MSI setup package and shell integration
options.
•The Expiration panel allows configuration of application expiration options.
•The ZENworks panel allows configuration of ZENworks Application Virtualization
Startup and Bundle Publishing features.

17 Novell ZENworks Application Virtualization
Note:ZENworks Application Virtualization users are individually responsible for assuring
compliance with licensing for any third-party redistributable components included using
virtualization.

18 Novell ZENworks Application Virtualization
3.3 METHODS OF CREATING VIRTUAL APPLICATIONS
ZENworks Application Virtualization offers three ways to create and configure virtualized
applications. The best method in a given scenario depends on the nature of the application to be
virtualized.
•Use an application template: ZENworks Application Virtualization includes templates for
popular applications which can be built and customized using a guided, step-by-step
process. This method is recommended for first-time users of ZENworks Application
Virtualization.
•Install via application snapshot: Snapshotting captures system state before and after an
application is installed and automatically configures virtual application settings based on
observed system changes. This method is ideal for virtualizing off-the-shelf applications
(Refer to the sub-section “Snapshotting applications” in the “Configuring virtual
applications” section for more information on this method).
•Manually configure an application: This method is most often used by developers
virtualizing internally developed applications. Manual configuration requires a high
degree of technical knowledge but allows the maximum amount of control over virtual
application settings (Refer to the sub-section “Manually configuring a simple virtual
application” in the “Walkthroughs” section for more information on this method).
All methods allow additional configuration and customization once the initial virtual application
configuration has been constructed.

19 Novell ZENworks Application Virtualization
3.4 CREATING YOUR FIRST VIRTUAL APPLICATION
ZENworks Application Virtualization includes automated virtual application configuration
wizards for certain popular software applications. Novell recommends that first-time users begin
by building one of these auto-configurable virtual applications using the ZENworks Application
Virtualization Configuration Wizard.
To build an auto-configured application:
•Open the ZENworks Application Virtualization Configuration Wizard. The wizard is
displayed on program startup, or can be opened by pressing the Configuration Wizard
button on the Virtual Application ribbon bar.
•Click on the box labeled Build a virtual application from a template.
•Select an application to virtualize from the Application dropdown. Some applications
may require download of additional configuration information or source application
media.
•Follow the wizard steps to construct the virtual application.
After completing the wizard, the virtual application configuration will remain loaded in the
ZENworks Application Virtualization interface. This allows the configuration settings generated
by the wizard to be inspected and additional customization to be performed (Refer to the following
sections “Configuring virtual applications” and “Customizing virtual applications” for more
information on configuration and customization).
Congratulations on building your first virtual application!

20 Novell ZENworks Application Virtualization
3.5 CONFIGURING VIRTUAL APPLICATIONS
Virtualization allows application deployment to be dramatically simplified by allowing files,
registry settings, components, and other application dependencies to be directly embedded into the
application executable. Use of Novell virtualization reduces setup complexity, prevents DLL
collisions, and allows applications to simulate the use of privileged disk and registry resources
without requiring administrative privileges on the host machine.

21 Novell ZENworks Application Virtualization
3.6 SNAPSHOTTING APPLICATIONS
Most commercial applications require complex combinations of filesystem and registry entries in
order to function properly. In order to facilitate virtualization of these applications, ZENworks
Application Virtualization can snapshot application installations and automatically configure them
based on modifications made to the host system during application setup.
3.6.1 Snapshotting
Snapshotting uses "before” and “after" images of the host machine to determine the virtual
application configuration:
•“Before” snapshot: Taken prior to installing the application. This captures the state of the
host device without the target application installed.
•“After” snapshot: Taken after installing the application. This captures all changes to the
host device during application installation. ZENworks Application Virtualization then
computes the changes, or deltas, between the before and after snapshots, and inserts these
changes into the configuration.
To use the snapshot feature:
•Prepare the host device by either removing the target application and all dependencies, or
copying ZENworks Application Virtualization onto a "clean" machine.
•Click on the Virtual Application tab on the ribbon bar and click Capture Before. This
captures the "before" snapshot image. Snapshotting iterates through the filesystem and
registry, and therefore may take several minutes to complete.
•(Optional) Novell recommends you save the "before" snapshot before continuing. This
allows you to skip this step when snapshotting subsequent applications from the same
clean machine image. To save the snapshot, click on the down arrow underneath the
Capture Before button and select Save Snapshot. Note that while ZENworks
Application Virtualization automatically saves the most recent captured "before"
snapshot, this snapshot is reset once the Capture and Diff process is complete.
•Install your application along with other files, settings, runtimes, and components you
wish to include in the virtual application (Refer to the following sub-section “Adding
runtimes and components” for more information on additional configuration). If the
application setup requests a reboot, be sure to save the "before" snapshot and then
proceed with the reboot.
•On the Virtual Application tab on the ribbon bar, click Capture and Diff. This
captures the "after" snapshot, computes the deltas between the two snapshots, and
populates the virtual application with the delta entries.
•(Optional) Review the filesystem and registry entries, and remove any files or settings
which are not required for proper execution of your virtual application. Removing unused
entries will reduce virtual application size, but be sure to avoid accidental removal of
required resources, as it will cause your virtual application to no longer function properly.
3.6.2 Saving snapshots

22 Novell ZENworks Application Virtualization
In many cases, the desired "before" snapshot remains fixed while many "after" snapshots are
taken. ZENworks Application Virtualization allows you to save the "before" snapshot image so
that the snapshot does not need to be re-captured each time. Because snapshotting may take
several minutes, this significantly reduces the time required to build virtual applications in this
scenario.
To save the "before" snapshot, click on the down arrow underneath the Capture Before button on
the Virtual Application ribbon bar and select Save Snapshot from the dropdown menu. Select
an appropriate filename and location and press Save. Similarly, to load a saved snapshot, select the
Load Snapshot menu item and navigate to the saved snapshot file. To clear the current "before"
snapshot image, select the Clear Snapshot menu item.