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Virtual Machine Applications¶ The vm universe facilitates an HTCondor job that matches and then lands a disk image on an execute machine within an HTCondor pool. This disk image is intended to be a virtual machine. In this manner, the virtual machine is the job to be.
- To run applications on virtual machine (VM) instances in a scale set, you first need to install the application components and required files. In a previous tutorial, you learned how to create and use a custom VM image to deploy your VM instances.
- VirtualBox (Mac & Windows) If you are new to virtualization, then your best choice of using a virtual.
- An example of a process VM is the Java Virtual Machine, which enables any operating system to run Java applications as if they were native to th at system. A s ystem virtual machine is fully virtualized to substitute for a physical machine.
- A virtual computer system is known as a “virtual machine” (VM): a tightly isolated software container with an operating system and application inside. Each self-contained VM is completely independent. Putting multiple VMs on a single computer enables several operating systems and applications to run on just one physical server, or “host.”.
Applies to
- Windows 7 SP1
- Windows 10
- Windows Server 2012 R2
- Windows Server 2016
You can run a locally installed application in a virtual environment, alongside applications that have been virtualized by using Microsoft Application Virtualization (App-V). You might want to do this if you:
- Want to install and run an application locally on client computers, but want to virtualize and run specific plug-ins that work with that local application.
- Are troubleshooting an App-V client package and want to open a local application within the App-V virtual environment.
Use any of the following methods to open a local application inside the App-V virtual environment:
Each method accomplishes essentially the same task, but some methods may be better suited for some applications than others, depending on whether the virtualized application is already running.
RunVirtual registry key
To add a locally installed application to a package or to a connection group’s virtual environment, you add a subkey to the
RunVirtual
registry key in the Registry Editor, as described in the following sections.There is no Group Policy setting available to manage this registry key, so you have to use Microsoft Endpoint Manager or another electronic software distribution (ESD) system, or manually edit the registry.
Starting with App-V 5.0 SP3, when using RunVirtual, you can publish packages globally or to the user.
Virtual Machine Applications For Windows
Steps to create the subkey
- Using the information in the following table, create a new registry key using the name of the executable file, for example, MyApp.exe.
Package publishing method Where to create the registry key Published globallyHKEY_LOCAL_MACHINESOFTWAREMicrosoftAppVClientRunVirtualExample: HKEY_LOCAL_MACHINESOFTWAREMicrosoftAppVClientRunVirtualMyApp.exePublished to the userHKEY_CURRENT_USERSOFTWAREMicrosoftAppVClientRunVirtualExample: HKEY_CURRENT_USER SOFTWAREMicrosoftAppVClientRunVirtualMyApp.exeConnection group can contain:- Packages that are published just globally or just to the user
- Packages that are published globally and to the user
Either HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER key, but all of the following must be true:- If you want to include multiple packages in the virtual environment, you must include them in an enabled connection group.
- Create only one subkey for one of the packages in the connection group. If, for example, you have one package that is published globally, and another package that is published to the user, you create a subkey for either of these packages, but not both. Although you create a subkey for only one of the packages, all of the packages in the connection group, plus the local application, will be available in the virtual environment.
- The key under which you create the subkey must match the publishing method you used for the package.For example, if you published the package to the user, you must create the subkey under
HKEY_CURRENT_USERSOFTWAREMicrosoftAppVClientRunVirtual
. Do not add a key for the same application under both hives.
- Set the new registry subkey’s value to the PackageId and VersionId of the package, separating the values with an underscore.Syntax: <PackageId>_<VersionId>Example: 4c909996-afc9-4352-b606-0b74542a09c1_be463724-Oct1-48f1-8604-c4bd7ca92faThe application in the previous example would produce a registry export file (.reg file) like the following:
Get-AppvClientPackage Windows PowerShell cmdlet
You can use the Start-AppVVirtualProcess cmdlet to retrieve the package name and then start a process within the specified package's virtual environment. This method lets you launch any command within the context of an App-V package, regardless of whether the package is currently running.
Use the following example syntax, and substitute the name of your package for <Package>:
$AppVName = Get-AppvClientPackage <Package>
Start-AppvVirtualProcess -AppvClientObject $AppVName cmd.exe
If you don’t know the exact name of your package, you can use the command line Get-AppvClientPackage *executable*, where executable is the name of the application, for example:
Get-AppvClientPackage *Word*
Get-AppvClientPackage *Word*
Command line switch /appvpid:<PID>
You can apply the /appvpid:<PID> switch to any command, which enables that command to run within a virtual process that you select by specifying its process ID (PID). Using this method launches the new executable in the same App-V environment as an executable that is already running.
Example:
cmd.exe /appvpid:8108
To find the process ID (PID) of your App-V process, run the command tasklist.exe from an elevated command prompt.
Virtual Machine Applications
Command line hook switch /appvve:<GUID>
This switch lets you run a local command within the virtual environment of an App-V package. Unlike the /appvid switch, where the virtual environment must already be running, this switch enables you to start the virtual environment.
Syntax:
cmd.exe /appvve:<PACKAGEGUID_VERSIONGUID>
Example:
cmd.exe /appvve:aaaaaaaa-bbbb-cccc-dddd-eeeeeeee_11111111-2222-3333-4444-55555555
To get the package GUID and version GUID of your application, run the Get-AppvClientPackage cmdlet. Concatenate the /appvve switch with the following:
- A colon
- Package GUID of the desired package
- An underscore
- Version ID of the desired package
If you don’t know the exact name of your package, use the command line Get-AppvClientPackage *executable*, where executable is the name of the application, for example:
Get-AppvClientPackage *Word*
Get-AppvClientPackage *Word*
This method lets you launch any command within the context of an App-V package, regardless of whether the package is currently running.
For App-V issues, use the App-V TechNet Forum.
Related topics
HOW VIRTUALIZATION WORKS
Virtualization 101
Due to the limitations of x86 servers, many IT organizations must deploy multiple servers, each operating at a fraction of their capacity, to keep pace with today’s high storage and processing demands. The result: huge inefficiencies and excessive operating costs.
Enter virtualization. Virtualization relies on software to simulate hardware functionality and create a virtual computer system. This enables IT organizations to run more than one virtual system – and multiple operating systems and applications – on a single server. The resulting benefits include economies of scale and greater efficiency.
Virtual Machines Explained
A virtual computer system is known as a “virtual machine” (VM): a tightly isolated software container with an operating system and application inside. Each self-contained VM is completely independent. Putting multiple VMs on a single computer enables several operating systems and applications to run on just one physical server, or “host.”
A thin layer of software called a “hypervisor” decouples the virtual machines from the host and dynamically allocates computing resources to each virtual machine as needed.
Key Properties of Virtual Machines
VMs have the following characteristics, which offer several benefits.
Partitioning
- Run multiple operating systems on one physical machine.
- Divide system resources between virtual machines.
Isolation
- Provide fault and security isolation at the hardware level.
- Preserve performance with advanced resource controls.
Encapsulation
- Save the entire state of a virtual machine to files.
- Move and copy virtual machines as easily as moving and copying files.
Hardware Independence
- Provision or migrate any virtual machine to any physical server.