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Managing virtual applications
About software virtualization
About software virtualization
See
"About software virtualization"
Virtual software layers facilitate the management of software on client computers
as follows:
You avoid conflicts
between applications.
You can repair broken
applications quickly.
You can easily roll back
to an earlier version.
Software Management Solution lets you perform the following virtualization
actions:
Virtualize applications during a Managed Software Delivery installation.
See
"Methods for virtualizing software"
Deliver and manage virtual layers with any delivery policy or task in Software
Management Solution.
See
"Methods for installing and managing virtual software"
Software virtualization lets you create virtual software layers. These layers consist
of one or more Windows-based applications or sets of data. A virtual software
layer contains all the files and registry settings of the application or the set of
data.
Software virtualization requires that a licensed version of the Software
Virtualization agent is installed on the client computers.
See
"Installing the Software Virtualization agent"
When you install a virtual software layer on a computer, the contents of the layer
are placed in a protected folder on the hard drive. This protected folder is referred
to as the redirection area. The files and registry settings of a layer are placed in
subfolders in the redirection area. When you activate a layer on a computer, its
contents are layered over the base file system and registry. The contents of the
layer appear where they would be if they were installed with a normal installation.
on page 212.
A virtual application always uses the correct files and registry
settings and does not modify the operating system or interfere
with other applications. You can even install two versions of the
same application on the same computer.
If an application is broken, you can quickly reset its layer to
restore the application to its original installed state. When an
application s layer is reset, other applications that are installed
on the computer cannot be damaged.
When you install a new version of an application, you can
deactivate the earlier version. If the new version causes problems,
you can easily deactivate it and activate the earlier version.
on page 219.
on page 221.
on page 47.
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