Locking Mechanisms

System.Threading.Monitor

Monitor.Enter() 

finally 
{ 
   Monitor.Exit(); 
} 

lock keyword

This is a shortcut to the Monitor methods in conjunction with the finally block

lock() 
{ 

} 

System.Threading.Mutex

Similar to Monitor but this works across multiple processes

mut = new Mutex(); 
mut.WaitOne 
mut.ReleaseMutex