Ensure that you have .net 2.0 installed on the box before installing SyncToy. Also, try downloading it locally and installing. Make sure that you have no versions of the Microsoft Sync Framework Runtime or the Microsoft SYnc Framework Services installed.
Thanks DeepaDeepa ( Microsoft Sync Framework)
Marked as answer byDeepa ChoundappanTuesday, October 6, 2009 6:23 PM