If you want that the client and plugin for Biovia Electronic Lab Notebook (ELN) installs for all users instead for the current user, do these changes:
Change ALLUSERS from 2 to 1
Change WixAppFolder from WixPerUserFolder to WixPerMachineFolder
Insert ALLUSERS 1
Change all values in column Root from 1 to -1
The plugin is not a plugin any more. It is a proxy program that always runs in the background (started by a run entry in the registry) and listens on localhost ports 5000 and 5001.