[wix-users] Execute SqlScript on Patch Uninstall

[Ven H]

Can anyone please tell me how to execute an SqlScript during Patch
Uninstallation? I need to rollback the changes caused by the Patch during
uninstallation of the Patch. I tried a lot with ExecuteOnUninstall,
RollbackOnUninstall etc, but nothing seems to be working. Also, if put this
in a separate component, then the Uninstall option disappears, even though
AllowRemoval=yes. I verified this in the Patch,msp file using Orca, but no
luck yet. Please help.