From: Erik Veenstra Date: 2006-01-25T22:28:12+09:00 Subject: Re: threading sync > My question is that do I really need mutex? No, you don't. You could as well use Thread.exclusive. This prevents other, excisting threads from being run. If the given block can't get blocked (e.g. by IO), it's much faster then Mutex. gegroet, Erik V. - http://www.erikveen.dds.nl/