Riva Professional Services may advise installing two instances of Riva on the same Windows host system.
WARNING: Do not follow these instructions unless advised to do so by the Riva Professional Services.
WARNING: Take EXTREME care to ensure that the two instances do not have conflicting options, or ensure that the sets of users are different.
WARNING: Do Not Add the Same User to Multiple Sync Policies. Ensure that the same target user is not synced by both instances; otherwise, duplicate data or data loss could result.