I am developing a C# application and using the following PowerShell script to create a new Group Policy Object (GPO) and link it to a specified domain or organizational unit. The script works fine for creating the GPO and linking it, but I am struggling with adding a software installation policy to this GPO. Specifically, I want to assign the installation of an MSI package located at $MsiPath(in a shared folder).

Here’s the script I have so far:

    [string]$GpoName,
    [string]$DomainName,
    [string]$OuPath,
    [string]$MsiPath
)

# Load the Group Policy module
Import-Module GroupPolicy

try {
    # Create a new GPO and link it to the OU
    $gpo = New-GPO -Name $GpoName -Domain $DomainName
    New-GPLink -Name $GpoName -Target $OuPath -LinkEnabled Yes -Order 1

    # Get the GPO's GUID
    $gpoGuid = (Get-GPO -Name $GpoName -Domain $DomainName).Id

    # I need help with the following part:
    # Create a new software installation policy to install the MSI package at $MsiPath
}
catch {
    Write-Host 'An error occurred: ' + $_
}

How can I update my script to add a software installation policy to the newly created GPO?
Or any C# module that can help?
Any assistance or code examples would be greatly appreciated!