* use Environment::Exit() to avoid PS process hanging
* old-fashioned exceptions
* try-catch-finally necessary
* disable Windows Defender Task when Defender module not installed
* cleanup script checks Defender module existence too
* fixed uninstall of Start Menu LNK
* use Command Prompt instead of Command Line wording
+ Desktop shortcut
* iterate through PSMODULEPATH when looking for WD module
JIRA IDFGH-2036
