From 'Windows Vista RTM Software Compatibility List - IeXwiki'
(
http://www.iexbeta.com/wiki/index.ph...atibility_List)
Install the game but don't run it. Download this 'file'
(
http://files.filefront.com/QT2+32bit.../fileinfo.html)
(DLL from QuickTime 2), unzip it and copy all the files in the same
directory where Riven had been installed. Apply this 'unofficial patch'
(
http://files.filefront.com/RivenGSDP.../fileinfo.html)
afterwards and run the Game as administrator.
Note this applies only to 32 bit Vista.
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jsrduck