diff --git a/README.md b/README.md
index 175b998..48bbdf0 100644
--- a/README.md
+++ b/README.md
@@ -28,21 +28,22 @@ def fdm_callback(fdm_data, event_pipe):
     return fdm_data  # return the whole structure
 
 """
-Start FlightGear with `--native-fdm=socket,out,30,,5501,udp --native-fdm=socket,in,30,,5502,udp`
+Start FlightGear with `--native-fdm=socket,out,30,localhost,5501,udp --native-fdm=socket,in,30,localhost,5502,udp`
 (you probably also want `--fdm=null` and `--max-fps=30` to stop the simulation fighting with
 these external commands)
 """
-fdm_conn = FDMConnection(fdm_version=24)  # May need to change version from 24
-fdm_event_pipe = fdm_conn.connect_rx('localhost', 5501, fdm_callback)
-fdm_conn.connect_tx('localhost', 5502)
-fdm_conn.start()  # Start the FDM RX/TX loop
-
-phi_rad_parent = 0.0
-while True:
-    phi_rad_parent += 0.1
-    # could also do `fdm_conn.event_pipe.parent_send` so you just need to pass around `fdm_conn`
-    fdm_event_pipe.parent_send((phi_rad_parent,))  # send tuple
-    time.sleep(0.5)
+if __name__ == '__main__':  # NOTE: This is REQUIRED on Windows!
+    fdm_conn = FDMConnection(fdm_version=24)  # May need to change version from 24
+    fdm_event_pipe = fdm_conn.connect_rx('localhost', 5501, fdm_callback)
+    fdm_conn.connect_tx('localhost', 5502)
+    fdm_conn.start()  # Start the FDM RX/TX loop
+    
+    phi_rad_parent = 0.0
+    while True:
+        phi_rad_parent += 0.1
+        # could also do `fdm_conn.event_pipe.parent_send` so you just need to pass around `fdm_conn`
+        fdm_event_pipe.parent_send((phi_rad_parent,))  # send tuple
+        time.sleep(0.5)
 ```
 
 Supported interfaces:
diff --git a/docs/source/conf.py b/docs/source/conf.py
index fe6eda9..cf371a2 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -33,7 +33,7 @@
 from typing import Any, Tuple, Optional, Callable
 from pprint import pformat
 from construct import (Struct, FormatField, Subconstruct, Array, Enum, Const, Padded, Pass, Transformed, Flag, Renamed,
-                       BitsInteger)
+                       BitsInteger, Bytes)
 from importlib import import_module
 from docutils import nodes
 from docutils.parsers.rst import Directive
@@ -116,7 +116,15 @@ def represent_object(o: Any, ident_level: int = 0, context_str: Optional[str] =
         else:
             pp_str = f'{type(o).__name__}{special_str}'
     elif isinstance(o, BitsInteger):
-        pp_str = 'Bits'
+        if o.length == 1:
+            pp_str = 'Bit'
+        else:
+            pp_str = f'{o.length} Bits'
+    elif isinstance(o, Bytes):
+        if o.length == 1:
+            pp_str = 'Byte'
+        else:
+            pp_str = f'{o.length} Bytes'
     elif isinstance(o, Pass.__class__):
         pp_str = ''  # Pass is a do-nothing. No information to represent
     elif isinstance(o, Flag.__class__):
diff --git a/docs/source/quickstart.rst b/docs/source/quickstart.rst
index 2ff5c8f..2d2afc8 100644
--- a/docs/source/quickstart.rst
+++ b/docs/source/quickstart.rst
@@ -7,7 +7,7 @@ Quick-Start
 
     #. If you're using the FDM interface:
 
-        * ``--fdm=null --max-fps=30 --native-fdm=socket,out,30,,5501,udp --native-fdm=socket,in,30,,5502,udp``
+        * ``--fdm=null --max-fps=30 --native-fdm=socket,out,30,localhost,5501,udp --native-fdm=socket,in,30,localhost,5502,udp``
 
         * the ``30`` in the arguments must match, so that the IO and the framerate are the same
 
diff --git a/examples/simple_ctrls.py b/examples/simple_ctrls.py
index fb1fa56..6afea6f 100755
--- a/examples/simple_ctrls.py
+++ b/examples/simple_ctrls.py
@@ -27,17 +27,18 @@ def ctrls_callback(ctrls_data, event_pipe):
     return ctrls_data  # return the whole structure
 
 """
-Start FlightGear with `--native-ctrls=socket,out,30,,5503,udp --native-ctrls=socket,in,30,,5504,udp`
+Start FlightGear with `--native-ctrls=socket,out,30,localhost,5503,udp --native-ctrls=socket,in,30,localhost,5504,udp`
 """
-ctrls_conn = CtrlsConnection(ctrls_version=27)
-ctrls_event_pipe = ctrls_conn.connect_rx('localhost', 5503, ctrls_callback)
-ctrls_conn.connect_tx('localhost', 5504)
-ctrls_conn.start()  # Start the Ctrls RX/TX loop
+if __name__ == '__main__':  # NOTE: This is REQUIRED on Windows!
+    ctrls_conn = CtrlsConnection(ctrls_version=27)
+    ctrls_event_pipe = ctrls_conn.connect_rx('localhost', 5503, ctrls_callback)
+    ctrls_conn.connect_tx('localhost', 5504)
+    ctrls_conn.start()  # Start the Ctrls RX/TX loop
 
-gear_down_parent = True
-time.sleep(2)
-while True:
-    # could also do `ctrls_conn.event_pipe.parent_send` so you just need to pass around `ctrls_conn`
-    ctrls_event_pipe.parent_send((gear_down_parent,))  # send tuple
-    gear_down_parent = not gear_down_parent  # Flip gear state
-    time.sleep(10)
+    gear_down_parent = True
+    time.sleep(2)
+    while True:
+        # could also do `ctrls_conn.event_pipe.parent_send` so you just need to pass around `ctrls_conn`
+        ctrls_event_pipe.parent_send((gear_down_parent,))  # send tuple
+        gear_down_parent = not gear_down_parent  # Flip gear state
+        time.sleep(10)
diff --git a/examples/simple_fdm.py b/examples/simple_fdm.py
index bd4a695..4cdcd6f 100755
--- a/examples/simple_fdm.py
+++ b/examples/simple_fdm.py
@@ -14,18 +14,19 @@ def fdm_callback(fdm_data, event_pipe):
     return fdm_data  # return the whole structure
 
 """
-Start FlightGear with `--native-fdm=socket,out,30,,5501,udp --native-fdm=socket,in,30,,5502,udp`
+Start FlightGear with `--native-fdm=socket,out,30,localhost,5501,udp --native-fdm=socket,in,30,localhost,5502,udp`
 (you probably also want `--fdm=null` and `--max-fps=30` to stop the simulation fighting with
 these external commands)
 """
-fdm_conn = FDMConnection(fdm_version=24)  # May need to change version from 24
-fdm_event_pipe = fdm_conn.connect_rx('localhost', 5501, fdm_callback)
-fdm_conn.connect_tx('localhost', 5502)
-fdm_conn.start()  # Start the FDM RX/TX loop
+if __name__ == '__main__':  # NOTE: This is REQUIRED on Windows!
+    fdm_conn = FDMConnection(fdm_version=24)  # May need to change version from 24
+    fdm_event_pipe = fdm_conn.connect_rx('localhost', 5501, fdm_callback)
+    fdm_conn.connect_tx('localhost', 5502)
+    fdm_conn.start()  # Start the FDM RX/TX loop
 
-phi_rad_parent = 0.0
-while True:
-    phi_rad_parent += 0.1
-    # could also do `fdm_conn.event_pipe.parent_send` so you just need to pass around `fdm_conn`
-    fdm_event_pipe.parent_send((phi_rad_parent,))  # send tuple
-    time.sleep(0.5)
+    phi_rad_parent = 0.0
+    while True:
+        phi_rad_parent += 0.1
+        # could also do `fdm_conn.event_pipe.parent_send` so you just need to pass around `fdm_conn`
+        fdm_event_pipe.parent_send((phi_rad_parent,))  # send tuple
+        time.sleep(0.5)
diff --git a/flightgear_python/ctrls_v27.py b/flightgear_python/ctrls_v27.py
index aa5423c..88c531f 100644
--- a/flightgear_python/ctrls_v27.py
+++ b/flightgear_python/ctrls_v27.py
@@ -4,7 +4,7 @@
 See https://github.com/FlightGear/flightgear/blob/619226e9d069d2a3e8ebf8658fb5441ca8a2c233/src/Network/net_ctrls.hxx
 """
 
-from construct import Array, Enum, Const, Bytes, Int32ub, Float64b, BitStruct, Flag, BitsInteger
+from construct import Array, Enum, Const, Bytes, Int32ub, Float64b, BitStruct, Bit, BitsInteger
 
 RESERVED_SPACE = 25  #: Constant value from define
 
@@ -81,9 +81,9 @@
     'speedup': Int32ub,  # integer speedup multiplier
     'freeze': BitStruct(  # Default is big-endian
         other=BitsInteger((Int32ub.sizeof() * 8) - 3),  # Rest of uint32 minus the 3 flags
-        fuel=Flag,
-        position=Flag,
-        master=Flag,
+        fuel=Bit,
+        position=Bit,
+        master=Bit,
     ),
     '_reserved': Bytes(Int32ub.length * RESERVED_SPACE),
 }
diff --git a/flightgear_python/fg_if.py b/flightgear_python/fg_if.py
index 8d6e8a4..be65ba6 100755
--- a/flightgear_python/fg_if.py
+++ b/flightgear_python/fg_if.py
@@ -5,7 +5,7 @@
 import socket
 import sys
 import re
-import multiprocessing as mp
+import multiprocess as mp
 from typing import Callable, Optional, Tuple, Any, Dict, Union, ByteString
 
 from construct import ConstError, Struct, Container
@@ -48,7 +48,7 @@ def connect_rx(self, fg_host: str, fg_port: int, rx_cb: rx_callback_type) -> Eve
 
         :param fg_host: IP address of FG (usually localhost)
         :param fg_port: Port of the output socket (i.e. the ``5501`` from\
-        ``--native-fdm=socket,out,30,,5501,udp``)
+        ``--native-fdm=socket,out,30,localhost,5501,udp``)
         :param rx_cb: Callback function, called whenever we receive data from FG.\
         Function signature should follow :attr:`rx_callback_type`
         :return: ``EventPipe`` so that data can be passed from the parent process\
@@ -72,7 +72,7 @@ def connect_tx(self, fg_host: str, fg_port: int):
 
         :param fg_host: IP address of FG (usually localhost)
         :param fg_port: Port of the input socket (i.e. the ``5502`` from\
-        ``--native-fdm=socket,in,,,5502,udp``)
+        ``--native-fdm=socket,in,30,localhost,5502,udp``)
         """
         self.fg_tx_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
         self.fg_tx_addr = (fg_host, fg_port)
diff --git a/flightgear_python/general_util.py b/flightgear_python/general_util.py
index 464f7b9..ae4a979 100644
--- a/flightgear_python/general_util.py
+++ b/flightgear_python/general_util.py
@@ -1,7 +1,7 @@
 """
 non-FlightGear-specific utility functionality
 """
-import multiprocessing as mp
+import multiprocess as mp
 from typing import Any, Union, ByteString
 
 
diff --git a/poetry.lock b/poetry.lock
index be43325..b60e653 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,10 +1,10 @@
 [[package]]
 name = "alabaster"
-version = "0.7.12"
+version = "0.7.13"
 description = "A configurable sidebar-enabled Sphinx theme"
 category = "dev"
 optional = false
-python-versions = "*"
+python-versions = ">=3.6"
 
 [[package]]
 name = "atomicwrites"
@@ -16,17 +16,19 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "attrs"
-version = "22.1.0"
+version = "22.2.0"
 description = "Classes Without Boilerplate"
 category = "dev"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.6"
 
 [package.extras]
-dev = ["cloudpickle", "coverage[toml] (>=5.0.2)", "furo", "hypothesis", "mypy (>=0.900,!=0.940)", "pre-commit", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "sphinx", "sphinx-notfound-page", "zope.interface"]
-docs = ["furo", "sphinx", "sphinx-notfound-page", "zope.interface"]
-tests = ["cloudpickle", "coverage[toml] (>=5.0.2)", "hypothesis", "mypy (>=0.900,!=0.940)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "zope.interface"]
-tests_no_zope = ["cloudpickle", "coverage[toml] (>=5.0.2)", "hypothesis", "mypy (>=0.900,!=0.940)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins"]
+cov = ["attrs", "coverage-enable-subprocess", "coverage[toml] (>=5.3)"]
+dev = ["attrs"]
+docs = ["furo", "myst-parser", "sphinx", "sphinx-notfound-page", "sphinxcontrib-towncrier", "towncrier", "zope.interface"]
+tests = ["attrs", "zope.interface"]
+tests-no-zope = ["cloudpickle", "hypothesis", "mypy (>=0.971,<0.990)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist"]
+tests_no_zope = ["cloudpickle", "hypothesis", "mypy (>=0.971,<0.990)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist"]
 
 [[package]]
 name = "babel"
@@ -41,7 +43,7 @@ pytz = ">=2015.7"
 
 [[package]]
 name = "certifi"
-version = "2022.9.24"
+version = "2022.12.7"
 description = "Python package for providing Mozilla's CA Bundle."
 category = "dev"
 optional = false
@@ -91,9 +93,20 @@ tomli = {version = "*", optional = true, markers = "extra == \"toml\""}
 [package.extras]
 toml = ["tomli"]
 
+[[package]]
+name = "dill"
+version = "0.3.4"
+description = "serialize all of python"
+category = "main"
+optional = false
+python-versions = ">=2.7, !=3.0.*"
+
+[package.extras]
+graph = ["objgraph (>=1.7.2)"]
+
 [[package]]
 name = "docutils"
-version = "0.17.1"
+version = "0.16"
 description = "Docutils -- Python Documentation Utilities"
 category = "dev"
 optional = false
@@ -198,12 +211,23 @@ python-versions = ">=3.6"
 
 [[package]]
 name = "mistune"
-version = "2.0.4"
+version = "2.0.5"
 description = "A sane Markdown parser with useful plugins and renderers"
 category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "multiprocess"
+version = "0.70.12.2"
+description = "better multiprocessing and multithreading in python"
+category = "main"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+dill = ">=0.3.4"
+
 [[package]]
 name = "numpy"
 version = "1.19.5"
@@ -248,7 +272,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [[package]]
 name = "pygments"
-version = "2.13.0"
+version = "2.14.0"
 description = "Pygments is a syntax highlighting package written in Python."
 category = "dev"
 optional = false
@@ -321,7 +345,7 @@ dev = ["pre-commit", "pytest-asyncio", "tox"]
 
 [[package]]
 name = "pytz"
-version = "2022.6"
+version = "2022.7.1"
 description = "World timezone definitions, modern and historical"
 category = "dev"
 optional = false
@@ -416,18 +440,18 @@ pygments = ">=2.8"
 
 [[package]]
 name = "sphinx-rtd-theme"
-version = "1.1.1"
+version = "0.5.2"
 description = "Read the Docs theme for Sphinx"
 category = "dev"
 optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
+python-versions = "*"
 
 [package.dependencies]
-docutils = "<0.18"
-sphinx = ">=1.6,<6"
+docutils = "<0.17"
+sphinx = "*"
 
 [package.extras]
-dev = ["bump2version", "sphinxcontrib-httpdomain", "transifex-client", "wheel"]
+dev = ["bump2version", "sphinxcontrib-httpdomain", "transifex-client"]
 
 [[package]]
 name = "sphinxcontrib-applehelp"
@@ -518,7 +542,7 @@ python-versions = ">=3.6"
 
 [[package]]
 name = "urllib3"
-version = "1.26.13"
+version = "1.26.15"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
 category = "dev"
 optional = false
@@ -544,27 +568,27 @@ testing = ["func-timeout", "jaraco.itertools", "pytest (>=4.6)", "pytest-black (
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6"
-content-hash = "1e1bb2d639e0b8eee780417cde54ee144f5eccb747e53d0cc03ee197c3193af6"
+content-hash = "64774d280c8ce4bd69235be1b11b95da5928a9f6738a8015963d686a1f6f5829"
 
 [metadata.files]
 alabaster = [
-    {file = "alabaster-0.7.12-py2.py3-none-any.whl", hash = "sha256:446438bdcca0e05bd45ea2de1668c1d9b032e1a9154c2c259092d77031ddd359"},
-    {file = "alabaster-0.7.12.tar.gz", hash = "sha256:a661d72d58e6ea8a57f7a86e37d86716863ee5e92788398526d58b26a4e4dc02"},
+    {file = "alabaster-0.7.13-py3-none-any.whl", hash = "sha256:1ee19aca801bbabb5ba3f5f258e4422dfa86f82f3e9cefb0859b283cdd7f62a3"},
+    {file = "alabaster-0.7.13.tar.gz", hash = "sha256:a27a4a084d5e690e16e01e03ad2b2e552c61a65469419b907243193de1a84ae2"},
 ]
 atomicwrites = [
     {file = "atomicwrites-1.4.1.tar.gz", hash = "sha256:81b2c9071a49367a7f770170e5eec8cb66567cfbbc8c73d20ce5ca4a8d71cf11"},
 ]
 attrs = [
-    {file = "attrs-22.1.0-py2.py3-none-any.whl", hash = "sha256:86efa402f67bf2df34f51a335487cf46b1ec130d02b8d39fd248abfd30da551c"},
-    {file = "attrs-22.1.0.tar.gz", hash = "sha256:29adc2665447e5191d0e7c568fde78b21f9672d344281d0c6e1ab085429b22b6"},
+    {file = "attrs-22.2.0-py3-none-any.whl", hash = "sha256:29e95c7f6778868dbd49170f98f8818f78f3dc5e0e37c0b1f474e3561b240836"},
+    {file = "attrs-22.2.0.tar.gz", hash = "sha256:c9227bfc2f01993c03f68db37d1d15c9690188323c067c641f1a35ca58185f99"},
 ]
 babel = [
     {file = "Babel-2.11.0-py3-none-any.whl", hash = "sha256:1ad3eca1c885218f6dce2ab67291178944f810a10a9b5f3cb8382a5a232b64fe"},
     {file = "Babel-2.11.0.tar.gz", hash = "sha256:5ef4b3226b0180dedded4229651c8b0e1a3a6a2837d45a073272f313e4cf97f6"},
 ]
 certifi = [
-    {file = "certifi-2022.9.24-py3-none-any.whl", hash = "sha256:90c1a32f1d68f940488354e36370f6cca89f0f106db09518524c88d6ed83f382"},
-    {file = "certifi-2022.9.24.tar.gz", hash = "sha256:0d9c601124e5a6ba9712dbc60d9c53c21e34f5f641fe83002317394311bdce14"},
+    {file = "certifi-2022.12.7-py3-none-any.whl", hash = "sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18"},
+    {file = "certifi-2022.12.7.tar.gz", hash = "sha256:35824b4c3a97115964b408844d64aa14db1cc518f6562e8d7261699d1350a9e3"},
 ]
 charset-normalizer = [
     {file = "charset-normalizer-2.0.12.tar.gz", hash = "sha256:2857e29ff0d34db842cd7ca3230549d1a697f96ee6d3fb071cfa6c7393832597"},
@@ -626,9 +650,13 @@ coverage = [
     {file = "coverage-6.2-pp36.pp37.pp38-none-any.whl", hash = "sha256:5829192582c0ec8ca4a2532407bc14c2f338d9878a10442f5d03804a95fac9de"},
     {file = "coverage-6.2.tar.gz", hash = "sha256:e2cad8093172b7d1595b4ad66f24270808658e11acf43a8f95b41276162eb5b8"},
 ]
+dill = [
+    {file = "dill-0.3.4-py2.py3-none-any.whl", hash = "sha256:7e40e4a70304fd9ceab3535d36e58791d9c4a776b38ec7f7ec9afc8d3dca4d4f"},
+    {file = "dill-0.3.4.zip", hash = "sha256:9f9734205146b2b353ab3fec9af0070237b6ddae78452af83d2fca84d739e675"},
+]
 docutils = [
-    {file = "docutils-0.17.1-py2.py3-none-any.whl", hash = "sha256:cf316c8370a737a022b72b56874f6602acf974a37a9fba42ec2876387549fc61"},
-    {file = "docutils-0.17.1.tar.gz", hash = "sha256:686577d2e4c32380bb50cbb22f575ed742d58168cee37e99117a854bcd88f125"},
+    {file = "docutils-0.16-py2.py3-none-any.whl", hash = "sha256:0c5b78adfbf7762415433f5515cd5c9e762339e23369dbe8000d84a4bf4ab3af"},
+    {file = "docutils-0.16.tar.gz", hash = "sha256:c2de3a60e9e7d07be26b7f2b00ca0309c207e06c100f9cc2a94931fc75a478fc"},
 ]
 gitdb = [
     {file = "gitdb-4.0.9-py3-none-any.whl", hash = "sha256:8033ad4e853066ba6ca92050b9df2f89301b8fc8bf7e9324d412a63f8bf1a8fd"},
@@ -750,8 +778,23 @@ markupsafe = [
     {file = "MarkupSafe-2.0.1.tar.gz", hash = "sha256:594c67807fb16238b30c44bdf74f36c02cdf22d1c8cda91ef8a0ed8dabf5620a"},
 ]
 mistune = [
-    {file = "mistune-2.0.4-py2.py3-none-any.whl", hash = "sha256:182cc5ee6f8ed1b807de6b7bb50155df7b66495412836b9a74c8fbdfc75fe36d"},
-    {file = "mistune-2.0.4.tar.gz", hash = "sha256:9ee0a66053e2267aba772c71e06891fa8f1af6d4b01d5e84e267b4570d4d9808"},
+    {file = "mistune-2.0.5-py2.py3-none-any.whl", hash = "sha256:bad7f5d431886fcbaf5f758118ecff70d31f75231b34024a1341120340a65ce8"},
+    {file = "mistune-2.0.5.tar.gz", hash = "sha256:0246113cb2492db875c6be56974a7c893333bf26cd92891c85f63151cee09d34"},
+]
+multiprocess = [
+    {file = "multiprocess-0.70.12.2-cp27-cp27m-macosx_10_12_x86_64.whl", hash = "sha256:35d41e410ca2a32977a483ae1f40f86b193b45cecf85567c2fae402fb8bf172e"},
+    {file = "multiprocess-0.70.12.2-cp27-cp27m-manylinux1_i686.whl", hash = "sha256:9a02237eae21975155c816883479f72e239d16823a6bc063173d59acec9bcf41"},
+    {file = "multiprocess-0.70.12.2-cp27-cp27m-manylinux1_x86_64.whl", hash = "sha256:f12a939cd2f01d0a900e7ef2aaee3c351a49fd2297d7f760b537af22727561b8"},
+    {file = "multiprocess-0.70.12.2-cp27-cp27m-win32.whl", hash = "sha256:be3ad3eaf204abc646d85e70e41244f66d88200628a0ab867c8fc206b97cedbf"},
+    {file = "multiprocess-0.70.12.2-cp27-cp27m-win_amd64.whl", hash = "sha256:c85ffc38c50c5a4f32f3f3c1a284725b7b5040188f254eba6e572c53d3da525b"},
+    {file = "multiprocess-0.70.12.2-pp27-none-any.whl", hash = "sha256:a9f58945edb234591684c0a181b744a3231643814ef3a8f47cea9a2073b4b2bb"},
+    {file = "multiprocess-0.70.12.2-pp36-none-any.whl", hash = "sha256:0e0a5ae4bd84e4c22baddf824d3b8168214f8c1cce51e2cb080421cb1f7b04d1"},
+    {file = "multiprocess-0.70.12.2-pp37-none-any.whl", hash = "sha256:916a314a1e0f3454033d59672ba6181fa45948ab1091d68cdd479258576e7b27"},
+    {file = "multiprocess-0.70.12.2-py36-none-any.whl", hash = "sha256:b3f866f7d9c7acc1a9cb1b6063a29f5cb140ff545b35b71fd4bfdac6f19d75fa"},
+    {file = "multiprocess-0.70.12.2-py37-none-any.whl", hash = "sha256:6aa67e805e50b6e9dfc56dd0f0c85ac3409e6791d4ec5405c5f9bc0a47d745a4"},
+    {file = "multiprocess-0.70.12.2-py38-none-any.whl", hash = "sha256:85941e650c277af44fc82e3e97faacb920e5ce3615238b540cbad4012d6f60e9"},
+    {file = "multiprocess-0.70.12.2-py39-none-any.whl", hash = "sha256:6f812a1d3f198b7cacd63983f60e2dc1338bd4450893f90c435067b5a3127e6f"},
+    {file = "multiprocess-0.70.12.2.zip", hash = "sha256:206bb9b97b73f87fec1ed15a19f8762950256aa84225450abc7150d02855a083"},
 ]
 numpy = [
     {file = "numpy-1.19.5-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:cc6bd4fd593cb261332568485e20a0712883cf631f6f5e8e86a52caa8b2b50ff"},
@@ -802,8 +845,8 @@ py = [
     {file = "py-1.11.0.tar.gz", hash = "sha256:51c75c4126074b472f746a24399ad32f6053d1b34b68d2fa41e558e6f4a98719"},
 ]
 pygments = [
-    {file = "Pygments-2.13.0-py3-none-any.whl", hash = "sha256:f643f331ab57ba3c9d89212ee4a2dabc6e94f117cf4eefde99a0574720d14c42"},
-    {file = "Pygments-2.13.0.tar.gz", hash = "sha256:56a8508ae95f98e2b9bdf93a6be5ae3f7d8af858b43e02c5a2ff083726be40c1"},
+    {file = "Pygments-2.14.0-py3-none-any.whl", hash = "sha256:fa7bd7bd2771287c0de303af8bfdfc731f51bd2c6a47ab69d117138893b82717"},
+    {file = "Pygments-2.14.0.tar.gz", hash = "sha256:b3ed06a9e8ac9a9aae5a6f5dbe78a8a58655d17b43b93c078f094ddc476ae297"},
 ]
 pyparsing = [
     {file = "pyparsing-3.0.7-py3-none-any.whl", hash = "sha256:a6c06a88f252e6c322f65faf8f418b16213b51bdfaece0524c1c1bc30c63c484"},
@@ -822,8 +865,8 @@ pytest-mock = [
     {file = "pytest_mock-3.6.1-py3-none-any.whl", hash = "sha256:30c2f2cc9759e76eee674b81ea28c9f0b94f8f0445a1b87762cadf774f0df7e3"},
 ]
 pytz = [
-    {file = "pytz-2022.6-py2.py3-none-any.whl", hash = "sha256:222439474e9c98fced559f1709d89e6c9cbf8d79c794ff3eb9f8800064291427"},
-    {file = "pytz-2022.6.tar.gz", hash = "sha256:e89512406b793ca39f5971bc999cc538ce125c0e51c27941bef4568b460095e2"},
+    {file = "pytz-2022.7.1-py2.py3-none-any.whl", hash = "sha256:78f4f37d8198e0627c5f1143240bb0206b8691d8d7ac6d78fee88b78733f8c4a"},
+    {file = "pytz-2022.7.1.tar.gz", hash = "sha256:01a0681c4b9684a28304615eba55d1ab31ae00bf68ec157ec3708a8182dbbcd0"},
 ]
 requests = [
     {file = "requests-2.27.1-py2.py3-none-any.whl", hash = "sha256:f22fa1e554c9ddfd16e6e41ac79759e17be9e492b3587efa038054674760e72d"},
@@ -849,8 +892,8 @@ sphinx-mdinclude = [
     {file = "sphinx_mdinclude-0.5.3.tar.gz", hash = "sha256:2998e3d18b3022c9983d1b72191fe37e25ffccd54165cbe3acb22cceedd91af4"},
 ]
 sphinx-rtd-theme = [
-    {file = "sphinx_rtd_theme-1.1.1-py2.py3-none-any.whl", hash = "sha256:31faa07d3e97c8955637fc3f1423a5ab2c44b74b8cc558a51498c202ce5cbda7"},
-    {file = "sphinx_rtd_theme-1.1.1.tar.gz", hash = "sha256:6146c845f1e1947b3c3dd4432c28998a1693ccc742b4f9ad7c63129f0757c103"},
+    {file = "sphinx_rtd_theme-0.5.2-py2.py3-none-any.whl", hash = "sha256:4a05bdbe8b1446d77a01e20a23ebc6777c74f43237035e76be89699308987d6f"},
+    {file = "sphinx_rtd_theme-0.5.2.tar.gz", hash = "sha256:32bd3b5d13dc8186d7a42fc816a23d32e83a4827d7d9882948e7b837c232da5a"},
 ]
 sphinxcontrib-applehelp = [
     {file = "sphinxcontrib-applehelp-1.0.2.tar.gz", hash = "sha256:a072735ec80e7675e3f432fcae8610ecf509c5f1869d17e2eecff44389cdbc58"},
@@ -885,8 +928,8 @@ typing-extensions = [
     {file = "typing_extensions-4.1.1.tar.gz", hash = "sha256:1a9462dcc3347a79b1f1c0271fbe79e844580bb598bafa1ed208b94da3cdcd42"},
 ]
 urllib3 = [
-    {file = "urllib3-1.26.13-py2.py3-none-any.whl", hash = "sha256:47cc05d99aaa09c9e72ed5809b60e7ba354e64b59c9c173ac3018642d8bb41fc"},
-    {file = "urllib3-1.26.13.tar.gz", hash = "sha256:c083dd0dce68dbfbe1129d5271cb90f9447dea7d52097c6e0126120c521ddea8"},
+    {file = "urllib3-1.26.15-py2.py3-none-any.whl", hash = "sha256:aa751d169e23c7479ce47a0cb0da579e3ede798f994f5816a74e4f4500dcea42"},
+    {file = "urllib3-1.26.15.tar.gz", hash = "sha256:8a388717b9476f934a21484e8c8e61875ab60644d29b9b39e11e4b9dc1c6b305"},
 ]
 zipp = [
     {file = "zipp-3.6.0-py3-none-any.whl", hash = "sha256:9fe5ea21568a0a70e50f273397638d39b03353731e6cbbb3fd8502a33fec40bc"},
diff --git a/pyproject.toml b/pyproject.toml
index 63d17cf..856000c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,11 +13,13 @@ license = "MIT"
 [tool.poetry.dependencies]
 python = "^3.6"
 construct = "^2.10"
+# Following are pegged at the latest version that supports Python 3.6
+multiprocess = "==0.70.12.2"
 
 [tool.poetry.dev-dependencies]
 sphinx = "^5.1.1"
 sphinx_mdinclude = "^0.5.2"
-sphinx-rtd-theme = "^1.0.0"
+sphinx-rtd-theme = "^0.5.2"  # Can't `poetry update` with 1.0.0?
 sh = "^1.14.3"
 pytest-cov = "^3.0.0"
 # Following are pegged at the latest version that supports Python 3.6
diff --git a/scripts/run_tests.sh b/scripts/run_tests.sh
index 9127303..923971b 100755
--- a/scripts/run_tests.sh
+++ b/scripts/run_tests.sh
@@ -10,7 +10,7 @@ fi
 if [ "$1" = 'clean' ]; then
   pip3 install -U pip
   pip3 install -U poetry
-  poetry update
+  poetry update -vvv
 fi
 poetry build
 poetry install
diff --git a/tests/test_pickling.py b/tests/test_pickling.py
new file mode 100644
index 0000000..b884b92
--- /dev/null
+++ b/tests/test_pickling.py
@@ -0,0 +1,30 @@
+"""
+We don't care about pickling per-say, but multiprocess uses the dill library
+to spin up new processes. This only seems to be a problem on Windows, but we need
+to support the weird way Windows implements fork().
+"""
+import dill
+
+from flightgear_python.fg_if import FDMConnection, CtrlsConnection
+from testing_common import supported_fdm_versions, supported_ctrls_versions
+
+import pytest
+from _pytest.outcomes import Failed
+
+
+@pytest.mark.parametrize('fdm_version', supported_fdm_versions)
+def test_pickle_fdm(fdm_version):
+    fdm_c = FDMConnection(fdm_version)
+    try:
+        dill.dumps(fdm_c.fg_net_struct)
+    except dill.PicklingError as e:
+        raise Failed(f'Failed to pickle FDM fg_net_struct: {e}') from None
+
+
+@pytest.mark.parametrize('ctrls_version', supported_ctrls_versions)
+def test_pickle_ctrls(ctrls_version):
+    ctrls_c = CtrlsConnection(ctrls_version)
+    try:
+        dill.dumps(ctrls_c.fg_net_struct)
+    except dill.PicklingError as e:
+        raise Failed(f'Failed to pickle Ctrls fg_net_struct: {e}') from None
diff --git a/tests/testing_common.py b/tests/testing_common.py
index 379064a..eb94c75 100644
--- a/tests/testing_common.py
+++ b/tests/testing_common.py
@@ -3,6 +3,7 @@
 
 
 supported_fdm_versions = [24, 25, ]
+supported_ctrls_versions = [27, ]
 
 
 project_dir = os.path.abspath(os.path.dirname(__file__))