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What I have understood from your post is,
Setting DisableRollback to 1 under the following registry key:HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Installer
disables the rollback option in Windows XP operating System.
Will it work on Windows 7?
Is this your question? If so, Yes.. It will work..
You can set Property:
in your MSI to disable the rollback.
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