c# - WIX: Unable to perform Major Upgrade using Orca at run time -

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i using wix create msi file . problem if change package code , product code without changing upgrade code using orca , not doing major upgrade previous version , rather creates new independent instance. when create new msi same upgrade code upgrades previous instance rather creating new one.

below product.wxs

<?xml version="1.0" encoding="utf-8"?> <wix xmlns="http://schemas.microsoft.com/wix/2006/wi" xmlns:util="http://schemas.microsoft.com/wix/utilextension">    <product id="*" name="prananirvana" language="1033" version="1.7.1.35" manufacturer="nirvana solutions" upgradecode="5f546b4e-65b3-42d3-b4f3-f7153319dedc">       <package installerversion="200" compressed="yes" installscope="permachine" />       <majorupgrade downgradeerrormessage="a newer version of [productname] installed." allowsameversionupgrades="yes" />

is there other parameter change in order create major upgrade?


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