diff --git a/docs/customization_guide/deploy.md b/docs/customization_guide/deploy.md
index 112a2cebcf..9a93e8e0d6 100644
--- a/docs/customization_guide/deploy.md
+++ b/docs/customization_guide/deploy.md
@@ -1,5 +1,5 @@
 <!--
-# Copyright (c) 2020-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# Copyright (c) 2020-2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
@@ -244,7 +244,9 @@ to `False` if not required to avoid capturing or exposing any sensitive informat
 
 #### `--trace-config level=<string> default "off"`
 
-Tracing mode. Trace mode supports `triton` and `opentelemetry`. Unless required `--trace-config level=off` should be set to avoid capturing or exposing any sensitive information.
+Tracing mode. Trace mode supports `triton` and `opentelemetry`. Unless required
+`--trace-config level=off` should be set to avoid capturing or exposing any
+sensitive information.
 
 
 ##### `backend-directory <string> default /opt/tritonserver/backends`
@@ -273,6 +275,17 @@ Directory where cache shared libraries are found.
 > must be access controlled. Adding untrusted files
 > can lead to arbitrarty code execution.
 
+##### `backend-config=<backend>,additional-dependency-dirs=<string>`
+
+This is an optional Windows feature that enables Triton to search custom
+dependency directories when loading a specific backend. The user can input
+these directories as a string of semicolon-separated paths (including a
+trailing semicolon). These directories are programmatically prepended to
+the process's PATH and are removed when the backend is loaded successfully.
+Windows will search PATH last in its search sequence, so be cautious that
+no untrusted files of same name exist in a location of higher search priority
+(e.g., System32). It is still recommended to add backend-specific dependencies
+to their corresponding backend folder when possible.
 
 
 
diff --git a/qa/L0_additional_dependency_dirs/test.sh b/qa/L0_additional_dependency_dirs/test.sh
new file mode 100755
index 0000000000..52b2f5e2de
--- /dev/null
+++ b/qa/L0_additional_dependency_dirs/test.sh
@@ -0,0 +1,269 @@
+#!/bin/bash
+# Copyright 2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#  * Neither the name of NVIDIA CORPORATION nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REPO_VERSION=${NVIDIA_TRITON_SERVER_VERSION}
+if [ "$#" -ge 1 ]; then
+    REPO_VERSION=$1
+fi
+if [ -z "$REPO_VERSION" ]; then
+    echo -e "Repository version must be specified"
+    echo -e "\n***\n*** Test Failed\n***"
+    exit 1
+fi
+
+if [[ -v WSL_DISTRO_NAME ]] || [[ -v MSYSTEM ]]; then
+    TRITON_DIR=${TRITON_DIR:=c:/tritonserver}
+    SERVER=${SERVER:=c:/tritonserver/bin/tritonserver.exe}
+    BACKEND_DIR=${BACKEND_DIR:=c:/tritonserver/backends}
+    MODELDIR=${MODELDIR:=c:/}
+    TRITONSERVER_IPADDR=${TRITONSERVER_IPADDR:="localhost"}
+else
+    echo -e "Test is not currently supported for Linux"
+    exit 1
+fi
+
+# FIXME: TPRD-244 - Do not use hard-coded dependency paths when TRT models
+# are being regularly generated on Windows.
+DEPENDENCY_PATH="C:/ci_test_deps/24.07"
+STALE_DEPENDENCY_PATH="C:/ci_test_deps/24.05"
+CUSTOM_DEPENDENCY_DIR=${MODELDIR}/custom_dependency_location
+STALE_DEPENDENCY_DIR=${MODELDIR}/stale_dependency_location
+TRT_MODEL_DIR="C:/tmp/24.07_trt_models"
+# Unlike the other commands, the mv command requires the path to be fully in
+# the UNIX style in order for regex to work properly. We cannot apply this
+# uniformly because the command line requires Windows path style.
+LOCAL_CI_TEST_DEPS_DIR=${MODELDIR_POSIX}/ci_test_deps
+
+source ../common/util.sh
+rm -rf ${CUSTOM_DEPENDENCY_DIR} ${LOCAL_CI_TEST_DEPS_DIR} ${STALE_DEPENDENCY_DIR} ${MODELDIR_POSIX}/models
+rm -f ./*.log ./*.out
+RET=0;
+
+mkdir ${LOCAL_CI_TEST_DEPS_DIR} ${CUSTOM_DEPENDENCY_DIR} ${STALE_DEPENDENCY_DIR}
+
+# Make a copy of the ci_test_deps directory and move out the TRT dependencies
+# A pre-test step will add ${LOCAL_CI_TEST_DEPS_DIR} to the PATH
+cp -r ${DEPENDENCY_PATH}/* ${LOCAL_CI_TEST_DEPS_DIR} && mv ${LOCAL_CI_TEST_DEPS_DIR}/nvinfer* ${CUSTOM_DEPENDENCY_DIR}/
+
+cp -r ${STALE_DEPENDENCY_PATH}/nvinfer* ${STALE_DEPENDENCY_DIR}/
+
+mkdir ${MODELDIR_POSIX}/models && \
+    cp -r ${TRT_MODEL_DIR}/qa_model_repository/plan_int32_int32_int32 ${MODELDIR_POSIX}/models/plan_int32_int32_int32
+
+function simple_inference_check()
+{
+    INFER_SUCCESS=1
+    set +e
+    code=`curl -s -w %{http_code} -o ./curl.out -d'{"inputs":[{"name":"INPUT0","datatype":"INT32","shape":[1,16],"data":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]},{"name":"INPUT1","datatype":"INT32","shape":[1,16],"data":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]}]}' ${TRITONSERVER_IPADDR}:8000/v2/models/plan_int32_int32_int32/infer`
+    set -e
+    if [ "$code" != "200" ]; then
+        cat ./curl.out
+        INFER_SUCCESS=0
+    fi
+}
+
+# Test Case 1: Run server when TRT implicit dependencies are not on path (expect FAIL)
+SERVER_LOG="./not_on_path_server.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2"
+run_server
+if [ "$SERVER_PID" != "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: unexpected success starting $SERVER\n***"
+    kill_server
+    RET=1
+fi
+
+# Test Case 2: Launch server with additional options to point to custom dependency location (expect SUCCESS)
+SERVER_LOG="./custom_dependency_dir_server.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2 --backend-config=tensorrt,additional-dependency-dirs=${CUSTOM_DEPENDENCY_DIR};"
+run_server
+if [ "$SERVER_PID" == "0" ]; then
+    echo -e "\n***\n*** Failed to start $SERVER\n***"
+    cat $SERVER_LOG
+    RET=1
+fi
+
+simple_inference_check
+if [ "${INFER_SUCCESS}" == "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: simple inference check failed\n***"
+    RET=1
+fi
+
+kill_server
+
+# Test Case 3: Launch server with additional options to point to custom dependency location and load model dynamically (expect SUCCESS)
+SERVER_LOG="./dynamic_loading_server.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2 --backend-config=tensorrt,additional-dependency-dirs=${CUSTOM_DEPENDENCY_DIR}; --model-control-mode=explicit"
+run_server
+if [ "$SERVER_PID" == "0" ]; then
+    echo -e "\n***\n*** Failed to start $SERVER\n***"
+    cat $SERVER_LOG
+    RET=1
+fi
+
+code=`curl -s -w %{http_code} -o ./curl.out -X POST ${TRITONSERVER_IPADDR}:8000/v2/repository/models/plan_int32_int32_int32/load`
+if [ "$code" != "200" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: Unable to load model: plan_int32_int32_int32\n***"
+    cat ./curl.out
+    RET=1
+fi
+
+simple_inference_check
+if [ "${INFER_SUCCESS}" == "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: simple inference check failed\n***"
+    RET=1
+fi
+
+kill_server
+
+# Test Case 4: Run server when pointing to stale TRT dependencies (expect FAIL)
+SERVER_LOG="./stale_dependencies_server.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2 --backend-config=tensorrt,additional-dependency-dirs=${STALE_DEPENDENCY_DIR};"
+run_server
+if [ "$SERVER_PID" != "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: unexpected success starting $SERVER\n***"
+    kill_server
+    RET=1
+fi
+
+# Test Case 5: [Test ordering] Run server when pointing to stale and correct TRT dependencies (stale first - expect FAIL).
+SERVER_LOG="./stale_first_server.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2 --backend-config=tensorrt,additional-dependency-dirs=${STALE_DEPENDENCY_DIR};${CUSTOM_DEPENDENCY_DIR};"
+run_server
+if [ "$SERVER_PID" != "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: unexpected success starting $SERVER\n***"
+    kill_server
+    RET=1
+fi
+
+# Test Case 6:  [Test ordering] Run server when pointing to stale and correct TRT dependencies (correct first - expect SUCCESS).
+SERVER_LOG="./correct_first_server.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2 --backend-config=tensorrt,additional-dependency-dirs=${CUSTOM_DEPENDENCY_DIR};${STALE_DEPENDENCY_DIR};"
+run_server
+if [ "$SERVER_PID" == "0" ]; then
+    echo -e "\n***\n*** Failed to start $SERVER\n***"
+    cat $SERVER_LOG
+    RET=1
+fi
+
+simple_inference_check
+if [ "${INFER_SUCCESS}" == "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: simple inference check failed\n***"
+    RET=1
+fi
+
+kill_server
+
+ORIGINAL_PATH=$PATH
+# Test Case 7: [Test ordering] Run server when correct TRT dependencies exist in environment PATH (expect SUCCESS)
+SERVER_LOG="./correct_in_environment.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2"
+PATH="${ORIGINAL_PATH};${CUSTOM_DEPENDENCY_DIR};"
+run_server
+if [ "$SERVER_PID" == "0" ]; then
+    echo -e "\n***\n*** Failed to start $SERVER\n***"
+    cat $SERVER_LOG
+    RET=1
+fi
+
+simple_inference_check
+if [ "${INFER_SUCCESS}" == "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: simple inference check failed\n***"
+    RET=1
+fi
+
+PATH=$ORIGINAL_PATH
+kill_server
+
+# Test Case 8: [Test ordering] Run server when correct TRT dependencies exist in environment PATH, but user specifies stale additional dependency directory (user input takes priority - expect FAIL)
+SERVER_LOG="./correct_in_environment_but_user_adds_stale.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2 --backend-config=tensorrt,additional-dependency-dirs=${STALE_DEPENDENCY_DIR};"
+PATH="${ORIGINAL_PATH};${CUSTOM_DEPENDENCY_DIR};"
+run_server
+if [ "$SERVER_PID" != "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: unexpected success starting $SERVER\n***"
+    kill_server
+    RET=1
+fi
+
+PATH=$ORIGINAL_PATH
+
+# Test Case 9: [Test ordering] Run server when stale TRT dependencies exist in environment PATH (expect FAIL)
+SERVER_LOG="./stale_in_environment.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2"
+PATH="${ORIGINAL_PATH};${STALE_DEPENDENCY_DIR};"
+run_server
+if [ "$SERVER_PID" != "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: unexpected success starting $SERVER\n***"
+    kill_server
+    RET=1
+fi
+
+PATH=$ORIGINAL_PATH
+
+# Test Case 10: [Test ordering] Run server when stale TRT dependencies exist in environment PATH, but user specifies correct additional dependency directory (user input takes priority - expect SUCCESS)
+SERVER_LOG="./stale_in_environment_but_user_adds_correct.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2 --backend-config=tensorrt,additional-dependency-dirs=${CUSTOM_DEPENDENCY_DIR};"
+PATH="${ORIGINAL_PATH};${STALE_DEPENDENCY_DIR};"
+run_server
+if [ "$SERVER_PID" == "0" ]; then
+    echo -e "\n***\n*** Failed to start $SERVER\n***"
+    cat $SERVER_LOG
+    RET=1
+fi
+
+simple_inference_check
+if [ "${INFER_SUCCESS}" == "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: simple inference check failed\n***"
+    RET=1
+fi
+
+PATH=$ORIGINAL_PATH
+kill_server
+
+# Test Case 11: Incorrect extension usage. User provided path(s) that are not semi-colon separated (expect FAIL).
+SERVER_LOG="./incorrect_usage_server.log"
+SERVER_ARGS="--model-repository=${MODELDIR}/models --backend-directory=${BACKEND_DIR} --log-verbose=2 --backend-config=tensorrt,additional-dependency-dirs=C:/not_semicolon_terminated"
+run_server
+if [ "$SERVER_PID" != "0" ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: unexpected success starting $SERVER\n***"
+    kill_server
+    RET=1
+fi
+
+if [ $(cat ${SERVER_LOG} | grep "malformed" | wc -l) -eq 0 ]; then
+    echo -e "\n***\n*** FAILED on line ${LINENO}: expected error statement not found $SERVER\n***"
+    cat $SERVER_LOG
+    RET=1
+fi
+
+if [ $RET -eq 0 ]; then
+  echo -e "\n***\n*** Test Passed\n***"
+else
+  echo -e "\n***\n*** Test FAILED\n***"
+fi
+
+exit $RET