Only one instance of the application can be run on the same PC (considering multiple user sessions)

1 class Program2 {3     Private StaticMutex m;4 5 [STAThread]6     Static voidMain ()7     {8         BOOLCreateNew =false;9 Ten         /* One * on servers running Terminal Services, named system mutexes can have two levels of visibility.  A * If the name begins with the prefix "global\", the mutex is visible in all Terminal Server sessions.  - * If the name begins with the prefix "local\", the mutex is only visible in the Terminal Server session in which it was created. In this case, you can have a separate mutex with the same name in each of the other Terminal server sessions on the server.  - * If you do not specify a prefix when creating a named mutex, it takes the prefix "local\".  the * In a Terminal Server session, only two mutexes with different name prefixes are separate mutexes, and these two mutexes are visible to all processes in a Terminal Server session.  - * That is, the prefix name "global\" and "local\" describe the scope of the mutex name relative to the Terminal Server session (not the process).  -          */ -         stringMutexname = String.Format ("global\\{0}","IPP PCL"); +  -         Try  +         { Am =NewSystem.Threading.Mutex (true, Mutexname, outcreateNew); at         } -         Catch(unauthorizedaccessexception unauthorizedaccessex) -         { -             //A named mutex exists and has access control security, but the user does not have mutexrights.fullcontrol.  -         } -  in         if(!CreateNew) -         { toConsole.WriteLine ("application is running"); +  -             return; the         } *  $Console.WriteLine ("Success");Panax Notoginseng  - Console.readkey (); the     } +}

Only one instance of the application can be run on the same PC (considering multiple user sessions)