App-V 5 publishing globally with DeploymentConfig.xml

To publish App-V package globally You can use powershell on client

Add-AppvClientPackage [Path_to_AppV_Package] -DynamicDeploymentConfiguration
[Path_to_DeploymentConfig_xml_File] | Publish-AppvClientPackage –Global |
Mount-AppvClientPackage

or You can use App-V Management server - grant access to package for computers group from AD, then right click on added app-v package in management console and choose Edit default configuration. Then from Advanced section use Import and Overwrite this Configuration button to load DeploymentConfig.xml for this app-v package