wpf - Unable to uninstall with custom WiX installer -

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i've created custom wix burn installer using managedbootstrapperapplicationhost wpf frontend (using wix 3.9).

the installation of msi works correctly. use mbootstrapperapplication.engine.detect(); determine if msi package present or not. if is, follow flow similar of installation, in order uninstall:

mbootstrapperapplication.engine.plan(launchaction.uninstall);

once it's in plancomplete event , status == 0, call mbootstrapperapplication.engine.apply(system.intptr.zero); , applycomplete event status == 0.

unfortunately though, nothing seems have happened @ point.

i'm hooked executemsimessage , has no messages coming through. when executebeginis fired, packagecount 0, believe should 1.

i can post code if necessary. wxs file looks this:

<?xml version="1.0" encoding="utf-8"?> <wix xmlns="http://schemas.microsoft.com/wix/2006/wi" xmlns:util="http://schemas.microsoft.com/wix/utilextension" xmlns:bal="http://schemas.microsoft.com/wix/balextension" xmlns:netfx="http://schemas.microsoft.com/wix/netfxextension">   <bundle name="custominstallbootstrapper" version="1.0.0.0" manufacturer="square enix ltd." upgradecode="33ca185d-083b-4d45-a0ae-693c2e09c5f0">     <bootstrapperapplicationref id="managedbootstrapperapplicationhost">         <payload sourcefile="d:\project\custominstallbootstrapper\bootstrappercore.config"/>         <payload sourcefile="d:\project\custominstallbootstrapper\custominstallbootstrapper.dll"/>     </bootstrapperapplicationref>      <wixvariable id="wixmbaprereqpackageid" value="ignore" />     <wixvariable id="wixmbaprereqlicenseurl" value="ignore" />      <chain>         <packagegroupref id="netfx451redist"/>         <msipackage id="launchermsi" sourcefile="d:\project\launcher.msi" cache="yes" visible="no">         </msipackage>     </chain>   </bundle> </wix>

if run msi on own, can install , uninstall without issues.


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