An important fix has been committed to the ptlib SVN to fix a bug in windows where nonAutoDelete threads where autoDeleting causing strange segfault at the end of a call.

If you are experiencing the issue please apply this patch.

http://opalvoip.svn.sourceforge.net/viewvc/opalvoip/ptlib/trunk/src/ptlib/msos/win32.cxx?r1=26095&r2=26698

Thanks to Josh Mercier for debugging this and getting it fixed in ptlib.

Simon