Note: App-V 4.6 has exited Mainstream support.
Use the following information to install the Microsoft Application Virtualization (App-V) 5.1 client (preferably, with the latest Service Packs and hotfixes) and the App-V 4.6 SP2 client or the App-V 4.6 S3 client on the same computer. For supported versions, requirements, and other planning information, see Planning for Migrating from a Previous Version of App-V.
To deploy the App-V 5.1 client and App-V 4.6 client on the same computer
Install the following version of the App-V client on the computer that is running App-V 4.6.
Install the App-V 5.1 client on the computer that is running the App-V 4.6 SP3 version of the client. For best results, we recommend that you install all available updates to the App-V 5.1 client.
Convert or re-sequence the packages gradually.
To convert the packages, use the App-V 5.1 package converter and convert the required packages to the App-V 5.1 (.appv) file format.
To re-sequence the packages, consider using the latest version of the Sequencer for best results.
For more information about publishing packages, see How to Publish a Package by Using the Management Console.
Deploy packages to the client computers.
Convert extension points, as needed. For more information, see the following resources:
Test that your App-V 5.1 packages are successful, and then remove the 4.6 packages. To check the user state of your client computers, we recommend that you use User Experience Virtualization or another user environment management tool.