We are planning the 7-Mode to Cluster Mode transition. As part of the transition, i would like to go ahead and install the Data OnTAP DSM for Windows MPIO software on our Windows servers that contain LUNs hosted by SnapDrive. My concern is the fact that the install makes registry key changes that might affect and/or break the existing 7-mode configuration. We are not using multipathing now, so I don't want to turn it on until we need it. Has anyone had experience with this tool? Is there any risk in installing the software prior to the transition to cluster mode?