I notice within the application I can call this function and pass it commands to list installed apps etc - for testing - is there any way I can run Get-InstalledApplication to see what it returns - I am not great with Powershell - but I notice when I run it - as just a command in powershell it errors as its not in any modules I have installed.
You can try out the different functions in the toolkit (like Get-InstalledApplication) by dot sourcing the main script in a powershell session, execute below command when located in the AppDeployToolkit folder to achieve this: . .\AppDeployToolkitMain.ps1
Then you can run: Get-InstalledApplication -?