I have a separate MSI to run devenv /setup
as part of my installation bundle, however this package always fails.
The WXS looks like this, am I missing something:
<Product Id="*" Name="$(var.Prep_ProductName)" Language="1033" Version="$(var.ProductVersion)" Manufacturer="$(var.Manufacturer)" UpgradeCode="fdd723a3-5072-437b-a0c4-88cca6173fc7">
<Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />
<MajorUpgrade AllowDowngrades="yes" />
<PropertyRef Id="VS2015DEVENV" />
<CustomActionRef Id="VS2015Setup" />
<UIRef Id="WixUI_ErrorProgressText" />
<InstallExecuteSequence>
<Custom Action="VS2015Setup" Before="InstallFinalize">
<![CDATA[VS2015DEVENV]]>
</Custom>
</InstallExecuteSequence>