Hello, If been lookup up possible planned functonality for adjusting a thread's priority in the boost thread library. In my search, i found this email: http://aspn.activestate.com/ASPN/Mail/Message/boost/1690190 In that message, sent 2 years ago, William E. Kempf states that they are implemented but are still undergoing design changes. At the moment, I still don't see that functionality in the main boost library - is there any idea when this is going to be part of the main boost library ? Thanks in advance. -- Leon Mergen