Novell ZENWORKS APPLICATION VIRTUALIZATION - V8.0.3 User Manual page 27

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Hide mode: Files and folders with Hide isolation enabled will return a 'File Not Found'
message to the application at runtime. This applies to both the virtual filesystem and the
host file system. Hide mode is generally used when a file on the host machine may
interfere with the application's ability to run properly. By adding the file or folder to the
virtual package with Hide isolation enabled, the application will receive a 'File Not
Found' message, even if the file or folder exists on the host machine.
Tip: To apply the selected isolation mode to all subfolders, right-click on the folder, choose
Isolation, click on the checkbox for Apply to subfolders, and click OK.
2.11.2 File Attributes
Files and folders may optionally be hidden from shell browse dialogs and other applications
enumerating virtual directory contents. This is often used to prevent internal components and data
files from being displayed to the user. To hide a file or folder, click on the checkbox in the
Hidden column next to the desired file or folder.
Note: The hidden flag should not be confused with Hide isolation mode. Enabling the hidden flag
only prevents a file or folder from being displayed in browse dialogs or from directory
enumeration APIs. It does not prevent the application, and therefore potentially the end-user, from
accessing the folder or file contents by direct binding. In order to prevent the file or folder from
being found by the application, Hide isolation mode should be enabled.
Flagging files as read-only will prevent the application from modifying the file. To make a file
read-only, click on the checkbox in the Read Only column next to the desired file. It is not
possible to set the read-only attribute at the folder level.
2.11.3 Sandbox Upgradeable Files
By default, ZENworks Application Virtualization allows files in the virtual filesystem to be
upgraded with patches. The Upgradeable flag will allow specific files to be patched in the
sandbox at runtime. To automatically allow a file to be upgraded, leave the Upgradeable
checkbox in the column next to the desired file checked. It is not possible to change the
upgradeable attribute at the folder level.
2.11.4 Filesystem Compression
To reduce executable size, ZENworks Application Virtualization can compress virtual filesystem
contents. This typically reduces virtual application payload size by approximately 50%, but also
prevents profiling and streaming of the app. By default, the Compress Payload option in the
Process Configuration area of the Settings panel is unchecked. This option should remain
unchecked during the build process in order to be able to profile and stream applications.
Note: Disabling payload compression may significantly increase the size of the virtual application
binary.
26 Novell ZENworks Application Virtualization