Topic summary
POSIX Threads
Extracted from the Wikipedia article Pthreads.
POSIX Threads for Windows
Windows does not support the pthreads standard natively; therefore, the Pthreads4w project seeks to provide a portable and open-source wrapper implementation. It can also be used to port Unix software (which uses pthreads) with little or no modification to the Windows platform. Pthreads4w version 3.0.0 or later, released under the Apache Public License v2.0, is compatible with 64-bit or 32-bit Windows systems. Version 2.11.0, released under the LGPLv3 license, is also 64-bit or 32-bit compatible.