# Create a new InstallShield project
$project = New-Object -ComObject ISWiAuto29.ISWiProject
$projectFile = "C:\temp\test\Test.ism"
$project.CreateProject($projectFile, 1)
$project.OpenProject($projectFile)

# Add files and folders
$sourceFolder = "C:\Temp\test\Application"
$destinationFolder = "INSTALLDIR"

# Function to add files recursively
function Add-Files($folder, $destination) {
    $files = Get-ChildItem -Path $folder -File
    foreach ($file in $files) {
        $project.AddFile($destination, $file.FullName)
    }

    $subfolders = Get-ChildItem -Path $folder -Directory
    foreach ($subfolder in $subfolders) {
        $newDestination = "$destination\\$($subfolder.Name)"
        $project.AddFolder($newDestination)
        Add-Files $subfolder.FullName $newDestination
    }
}

# Start adding files and folders
Add-Files $sourceFolder $destinationFolder

# Save and close the project
$project.SaveProject()
$project.CloseProject()