WIX; How can I pass the [installfolder] as argument in an ExePackage - wix

Question

I am creating a WIX bundle which calls an executable.
In that call I'm trying to pass the installfolder as an argument but for some reason this doesn't seem to work.
The bundle:
<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"
xmlns:bal="http://schemas.microsoft.com/wix/BalExtension"
xmlns:util="http://schemas.microsoft.com/wix/UtilExtension">
<Bundle Name="$(var.Department) $(var.ProductName)"
Version="!(bind.packageVersion.Database.CLI.Verify)"
Manufacturer="$(var.Company) $(var.Department)"
UpgradeCode="5fc4dc21-0202-4e28-b8a4-b87f972ae32e"
DisableRemove="yes"
DisableModify="yes"
IconSourceFile="Database.ico">
<util:RegistrySearchRef Id='VerifyDotnetVersion' />
<Variable Name="InstallFolder" Type="string" Value="c:\$(var.Company)"/>
<BootstrapperApplicationRef Id="WixStandardBootstrapperApplication.HyperlinkLicense">
<!-- LicenseUrl intentionally empty. -->
<bal:WixStandardBootstrapperApplication LicenseUrl=""
LogoFile="Database.png"
SuppressOptionsUI="no"
SuppressRepair="yes"/>
</BootstrapperApplicationRef>
<Chain>
<PackageGroupRef Id="SqlServer2019ExpressLocalDB" />
<PackageGroupRef Id="Database.CLI"/>
</Chain>
</Bundle>
<Fragment>
<util:FileSearch Id='VerifyDotnetVersion'
Variable="DotnetVersion"
Path="dotnet.exe"
Result="version" />
<bal:Condition Message="This installer requires at least dotnet version 6.">
DotnetVersion >= v6
</bal:Condition>
</Fragment>
</Wix>
And the part that is calling the ExePackage:
<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"
xmlns:util="http://schemas.microsoft.com/wix/UtilExtension">
<Fragment>
<PackageGroup Id="Database.CLI">
<ExePackage Id="Database.CLI.Verify"
DisplayName="Check whether SqlLocalDb has been installed."
SourceFile="$(var.SourceFile)"
InstallCommand="verify"
UninstallCommand="remove"
Vital="yes"
Compressed="no"
PerMachine="yes"
Permanent="no">
<ExitCode Value="0" Behavior="success" />
<ExitCode Value="1" Behavior="error" />
<ExitCode Value="5" Behavior="error" />
<ExitCode Value="31" Behavior="error" />
<ExitCode Value="183" Behavior="success" />
<ExitCode Value="574" Behavior="error" />
<ExitCode Value="3010" Behavior="forceReboot" />
</ExePackage>
<ExePackage Id="Database.CLI.Attach"
DisplayName="Attach database to the SqlLocalDb instance."
SourceFile="$(var.SourceFile)"
InstallCommand="attach Target="[INSTALLFOLDER]\$(var.Department)\$(var.ProductName)""
Vital="yes"
Compressed="no"
PerMachine="yes">
<ExitCode Value="0" Behavior="success" />
<ExitCode Value="1" Behavior="error" />
<ExitCode Value="5" Behavior="error" />
<ExitCode Value="31" Behavior="error" />
<ExitCode Value="183" Behavior="success" />
<ExitCode Value="574" Behavior="error" />
<ExitCode Value="3010" Behavior="forceReboot" />
</ExePackage>
</PackageGroup>
</Fragment>
</Wix>
When I look in the logs I see as argument:
[7A60:546C][2022-06-16T16:44:15]i301: Applying execute package: Database.CLI.Attach, action: Install, path: C:\ProgramData\Package Cache\0FD93FB1FD9BBE5B46CC123351ECE9DBCEC54E9D\Database.CLI.exe, arguments: '"C:\ProgramData\Package Cache\0FD93FB1FD9BBE5B46CC123351ECE9DBCEC54E9D\Database.CLI.exe" attach Target="\Analytics\Database"'
But I'm missing the contents of the [INSTALLFOLDER] so what I expect should be something like Target="c:\temp\Analytics\Database".
What am I missing here?
p.s. Is it also possible to provide an INSTALLFOLDER when launching the setup-bundle for silent installs? Like Database.Setup.exe InstallLocation=c:\temp
Many thanks in advance.

Answer 1

Burn variables are case-sensitive, so use [InstallFolder], not [INSTALLFOLDER].