Hi, Koen
you can install SyncToySetup.msi to a folder other than "\Program Files\". it will work fine.
I have no idea about "Microsoft SyncToy Customer Feedback Options"
Seems you want to do something automation for Syncing files.
If you want to work out a specific application to sync files for your own, the following links maybe interesting:
Microsoft Sync Framework:
http://msdn.microsoft.com/en-us/library/bb902854.aspx
Sync Services for File Systems:
http://msdn.microsoft.com/en-us/library/bb902860.aspx
Thanks,
Baoke