Windows installer improvements

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>

setup/radarr.iss

@@ -43,7 +43,7 @@ Name: "english"; MessagesFile: "compiler:Default.isl"
 
 [Tasks]
 Name: "desktopIcon"; Description: "{cm:CreateDesktopIcon}"
-Name: "windowsService"; Description: "Install Windows Service (Starts when the computer starts)"; GroupDescription: "Start automatically"; Flags: exclusive
+Name: "windowsService"; Description: "Install Windows Service (Starts when the computer starts as the LocalService user, you will need to change the user to access network shares)"; GroupDescription: "Start automatically"; Flags: exclusive
 Name: "startupShortcut"; Description: "Create shortcut in Startup folder (Starts when you log into Windows)"; GroupDescription: "Start automatically"; Flags: exclusive unchecked
 Name: "none"; Description: "Do not start automatically"; GroupDescription: "Start automatically"; Flags: exclusive unchecked
 
@@ -72,5 +72,6 @@ function PrepareToInstall(var NeedsRestart: Boolean): String;
 var
   ResultCode: Integer;
 begin
-  Exec(ExpandConstant('{commonappdata}\Radarr\bin\Radarr.Console.exe'), '/u', '', 0, ewWaitUntilTerminated, ResultCode)
+  Exec('net', 'stop radarr', '', 0, ewWaitUntilTerminated, ResultCode)
+  Exec('sc', 'delete radarr', '', 0, ewWaitUntilTerminated, ResultCode)
 end;