lib/std/child_process.zig               | 447 ++++++++++++++++++++++++++------
 lib/std/os.zig                          |  14 +-
 lib/std/os/windows.zig                  |  34 +++
 lib/std/os/windows/kernel32.zig         |   2 +
 test/standalone.zig                     |   4 +
 test/standalone/windows_spawn/build.zig |  16 ++
 test/standalone/windows_spawn/hello.zig |   6 +
 test/standalone/windows_spawn/main.zig  | 161 ++++++++++++
 8 files changed, 589 insertions(+), 95 deletions(-)