I have upgraded all my WinXP clients successfully to the ZfD65sp2 agent to via an MSI zen app. I found the note in the agent readme about upgrading Win98 systems, which states that the REINSTALLMODE=vemus property needs to be used or the install will muck up the system. What effect does that property have on XP systems? I'd rather just create a single app for all my operating systems, rather than one for XP without the property and one for 98 with the property.