How to disable mouse synchronization between Host and Guest OS in parallels 9

Add line "video.hw_pointer=0" (without quotes) to VM Configuration > Hardware > Boot order > Boot flags.
 
Any chance you got this working with a guest os of Mavericks

It's working. Build 9.0.24172, Windows 8.1

Thank you serv!

I too am trying to split a mac so that it can be used by two people (two monitors, two keyboards, two mice). I setup a mavericks VM and when I plug an optical mouse in and specify that it is to be used by the VM it has no pointer. Tried the video.hw_pointer=0 boot flag and that didn't help.
 
This flag is only useful for Windows guests. Guest OS X requires [virtualized] hardware mouse pointer support, sorry.
 
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