The command line arguments passed to the application on startup are accessible through the application arguments collection MWOffice.Arguments. Each white-space delimited command-line argument is available as a argument object in the collection. The Argument.Value property contains the value of that argument. For example, the following script prints a list of the arguments passed to the application to the debug output window.
Running this script I get the following output:
e:\MWO_Dev\Debug\MWOffice.exe f MWO-229
Here the application located at 'e:\MWO_Dev\Debug\MWOffice.exe' has been started with the feature flag '-f' and provided with the feature 'MWO-229' indicating I want to run the 229 version of Microwave Office.