Wix MSI Doesn't Launch

Question

The project was built successfully but when i run the generated MSI it makes its checks and gathers info and then closes and the installer doesn't appear. In task manager i can see that msiexec.exe is running. What is happening? this is my code.

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
<Product Id="*" Name="Installer" Language="1033" Version="1.0.0.0" Manufacturer="Microsoft" UpgradeCode="d52283dd-2703-42a4-b3ef-73726d5e4ec6">
    <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />

    <MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />
    <MediaTemplate EmbedCab="yes"/>

    <Feature Id="ProductFeature" Title="Installer" Level="1">
        <ComponentGroupRef Id="ProductComponents" />
    </Feature>
</Product>

<Fragment>
    <Directory Id="TARGETDIR" Name="SourceDir">
        <Directory Id="ProgramFilesFolder">
            <Directory Id="INSTALLFOLDER" Name="Installer" />
        </Directory>
    </Directory>
</Fragment>

<Fragment>
    <ComponentGroup Id="ProductComponents" Directory="INSTALLFOLDER">
        <!-- TODO: Remove the comments around this Component element and the ComponentRef below in order to add resources to this installer. -->
        <Component Id="ProductComponent" Guid="{CB56C523-A71F-41C2-8C67-30A864FF253F}">
      <File Source="$(var.EJMS.TargetPath)" KeyPath="yes"/>
        </Component>
    </ComponentGroup>
</Fragment>
</Wix>

Answer 1

From command line try to run

msiexec /i installerName.msi /l*v log.txt

And look through the installer log to see if its getting caught up somewhere. The install could be silently failing, or even succeeding. You have no UI setup, so it would just go through the install silently. Check for return value 3 as it generally indicates failures