Install and Uninstall an application through the script.

If you need to just silently install the MSI file, and not test the installer, you can use the Win32_Product.Install method:

var strMSIPath = "C:\\MyAppSetup.msi";
var strOptions = ""; // MSI properties in the format "PROPERTY1=value1 PROPERTY2=value2"
var ForAllUsers = false;

var oSoftware = GetObject("winmgmts:").Get("Win32_Product");
var res = oSoftware.Install(strMSIPath, strOptions, ForAllUsers);

if (res != 0)
  Log.Error("Could not install the MSI file. Error " + res);

// For error codes, see MSDN:
// https://msdn.microsoft.com/en-us/library/aa390890(v=vs.85).aspx

To uninstall an application, try this example: Uninstall an application.
Use the application name as shown in Programs and Features.