The uninstallable patch is looking for the original MSI that was extracted from Setup.exe chainer into temporary folder and is since long gone.
I re-read the docs but I am still clueless as to what caused it. Naturally, I want to uninstall the patch without requiring the access to the original RTM MSI. Here is wxs used to create the patch: <?xml version="1.0" encoding="windows-1252"?> <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"> <!-- Path variables --> <?define APPROOT = "C:\wixpatch"?> <?define RTM = "$(var.APPROOT)\Build104"?> <!-- update location(s) need to be updated --> <?define QFE1 = "$(var.APPROOT)\Build111"?> <!-- patch id needs to be updated --> <PatchCreation Id="{.....}" AllowMajorVersionMismatches="no" AllowProductCodeMismatches="no" CleanWorkingFolder="no" WholeFilesOnly="no" Codepage="1252" > <PatchInformation Description="MyPatch" Keywords="Installer Hotfix Patch" Comments="MyPatches" Manufacturer="Me" Languages="1033" Compressed="yes" SummaryCodepage="1252" AdminImage="yes"/> <!-- Build number needs to be updated --> <PatchMetadata Description=" Hotfix 111" DisplayName="My Hotfix" TargetProductName="Mine" ManufacturerName="Me" MoreInfoURL="http://www.MeMeMe.com" Classification="Hotfix" AllowRemoval="yes" OptimizedInstallMode="yes" /> <Family Name="Patch" DiskId="2" MediaSrcProp="PATCH111" SequenceStart="100" > <UpgradeImage Id="PatchQFE1" SourceFile="$(var.QFE1)\My.msi" > <TargetImage Id="PatchRTM" Order="1" IgnoreMissingFiles="no" SourceFile="$(var.RTM)\My.msi" /> </UpgradeImage> </Family > <TargetProductCode Id="{....}" /> <PatchProperty Name="PATCH_111" Value="yes" /> <!-- patch sequence needs to be updated --> <PatchSequence PatchFamily="MyPatchFamily" Sequence="1.0.4.0" Supersede="no" /> </PatchCreation> </Wix> ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users