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LookingGlass/doc/legacy_host.rst
2026-11-06 12:38:55 +11:00

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.. _legacy_host:
Legacy Host Application
#######################
.. warning::
The Host Application is a legacy server application. New installations should
use the :doc:`Looking Glass IDD <install_idd>`. The IDD and legacy host
should not be installed together on the same virtual machine. These build
instructions are retained for the B7 stack described in
:ref:`legacy_host_policy`.
.. note::
`Host` in this context refers to the `Looking Glass (LG) host server
application`, which the LG client connects to, it thus does not refer to the
`host OS`.
A common setup is to have a `host OS` running a `guest VM`. In such a setup
the `client application` runs on the `host OS`, and the `host application`
on the `guest VM`.
The term `Host application` was chosen over `Guest application`, because LG
can be run in a VM to VM configuration, in which case both Host Application and
Client Application are run inside VM Guests.
The Windows Host Application is no longer the recommended server implementation.
It is missing many of the features available in the Looking Glass IDD, such as:
* No additional video capture overhead;
* Usage without a monitor or dummy plug connected;
* Automatically resizing the guest to fit the client application viewport;
* HDR support; or
* Usage in virtual machines without GPU acceleration.
B7 is the last recommended version of the legacy host application for users who
require its non-capture mouse input workflow. Mismatched versions will cause
issues, please make sure all components are using version B7.
The documentation is included here for completeness.
.. toctree::
:maxdepth: 1
Installation <install_host>
Configuration <host_usage>
Building from source <build_host>