diff --git a/.github/workflows/acceptance-test.yml b/.github/workflows/acceptance-test.yml
index be8202e1..abc40b8d 100644
--- a/.github/workflows/acceptance-test.yml
+++ b/.github/workflows/acceptance-test.yml
@@ -20,7 +20,7 @@ jobs:
   acceptance-test:
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-latest, windows-latest]
         auth: [connect, service-account]
         exclude:
           - os: macos-latest
@@ -60,11 +60,13 @@ jobs:
         if: ${{ matrix.auth == 'service-account' }}
         uses: ./configure
         with:
+          runner: ${{ runner.os }}
           service-account-token: ${{ secrets.OP_SERVICE_ACCOUNT_TOKEN }}
       - name: Configure 1Password Connect
         if: ${{ matrix.auth == 'connect' }}
         uses: ./configure # 1password/load-secrets-action/configure@<version>
         with:
+          runner: ${{ runner.os }}
           connect-host: http://localhost:8080
           connect-token: ${{ secrets.OP_CONNECT_TOKEN }}
       - name: Load secrets
diff --git a/.github/workflows/test-fork.yml b/.github/workflows/test-fork.yml
index cdfa9067..78bf81b6 100644
--- a/.github/workflows/test-fork.yml
+++ b/.github/workflows/test-fork.yml
@@ -12,7 +12,7 @@ jobs:
         github.event.client_payload.pull_request.head.sha,
         github.event.client_payload.slash_command.args.named.sha
       )
-    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@main
+    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@vzt/windows-support
     secrets: inherit
     with:
       secret: op://acceptance-tests/test-secret/password
@@ -27,7 +27,7 @@ jobs:
         github.event.client_payload.pull_request.head.sha,
         github.event.client_payload.slash_command.args.named.sha
       )
-    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@main
+    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@vzt/windows-support
     secrets: inherit
     with:
       secret: op://acceptance-tests/test-secret/password
@@ -42,7 +42,7 @@ jobs:
         github.event.client_payload.pull_request.head.sha,
         github.event.client_payload.slash_command.args.named.sha
       )
-    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@main
+    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@vzt/windows-support
     secrets: inherit
     with:
       secret: op://v5pz6venw4roosmkzdq2nhpv6u/hrgkzhrlvscomepxlgafb2m3ca/password
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3a934723..b1a4b618 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -21,7 +21,7 @@ jobs:
         github.event_name == 'pull_request' && 
         github.event.pull_request.head.repo.full_name == github.repository
       )
-    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@main
+    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@vzt/windows-support
     secrets: inherit
     with:
       secret: op://acceptance-tests/test-secret/password
@@ -35,7 +35,7 @@ jobs:
         github.event_name == 'pull_request' && 
         github.event.pull_request.head.repo.full_name == github.repository
       )
-    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@main
+    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@vzt/windows-support
     secrets: inherit
     with:
       secret: op://acceptance-tests/test-secret/password
@@ -49,7 +49,7 @@ jobs:
         github.event_name == 'pull_request' && 
         github.event.pull_request.head.repo.full_name == github.repository
       )
-    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@main
+    uses: 1password/load-secrets-action/.github/workflows/acceptance-test.yml@vzt/windows-support
     secrets: inherit
     with:
       secret: op://v5pz6venw4roosmkzdq2nhpv6u/hrgkzhrlvscomepxlgafb2m3ca/password
diff --git a/configure/action.yml b/configure/action.yml
index 40ab9ebe..6f207b23 100644
--- a/configure/action.yml
+++ b/configure/action.yml
@@ -8,10 +8,25 @@ inputs:
     description: Token to authenticate to your 1Password Connect instance
   service-account-token:
     description: Your 1Password service account token
+  runner:
+    description: The runner to use for this action. Valid values are `Linux`, `Windows`, and `macOS`.
+    default: ubuntu
+    required: false
+    type: string
 runs:
   using: composite
   steps:
-    - shell: bash
+    - if: ${{ inputs.runner == 'Windows' }}
+      shell: pwsh
+      env:
+        INPUT_CONNECT_HOST: ${{ inputs.connect-host }}
+        INPUT_CONNECT_TOKEN: ${{ inputs.connect-token }}
+        INPUT_SERVICE_ACCOUNT_TOKEN: ${{ inputs.service-account-token }}
+      run: |
+        ${{ github.action_path }}/entrypoint.ps1
+
+    - if: ${{ inputs.runner != 'Windows' }}
+      shell: bash
       env:
         INPUT_CONNECT_HOST: ${{ inputs.connect-host }}
         INPUT_CONNECT_TOKEN: ${{ inputs.connect-token }}
diff --git a/configure/entrypoint.ps1 b/configure/entrypoint.ps1
new file mode 100644
index 00000000..e7683337
--- /dev/null
+++ b/configure/entrypoint.ps1
@@ -0,0 +1,17 @@
+if ($env:INPUT_CONNECT_HOST) {
+  Add-Content -Path $env:GITHUB_ENV -Value "OP_CONNECT_HOST=$($env:INPUT_CONNECT_HOST)" -Encoding utf8
+} elseif ($env:OP_CONNECT_HOST) {
+  Add-Content -Path $env:GITHUB_ENV -Value "OP_CONNECT_HOST=$($env:OP_CONNECT_HOST)" -Encoding utf8
+}
+
+if ($env:INPUT_CONNECT_TOKEN) {
+  Add-Content -Path $env:GITHUB_ENV -Value "OP_CONNECT_TOKEN=$($env:INPUT_CONNECT_TOKEN)" -Encoding utf8
+} elseif ($env:OP_CONNECT_TOKEN) {
+  Add-Content -Path $env:GITHUB_ENV -Value "OP_CONNECT_TOKEN=$($env:OP_CONNECT_TOKEN)" -Encoding utf8
+}
+
+if ($env:INPUT_SERVICE_ACCOUNT_TOKEN) {
+  Add-Content -Path $env:GITHUB_ENV -Value "OP_SERVICE_ACCOUNT_TOKEN=$($env:INPUT_SERVICE_ACCOUNT_TOKEN)" -Encoding utf8
+} elseif ($env:OP_SERVICE_ACCOUNT_TOKEN) {
+  Add-Content -Path $env:GITHUB_ENV -Value "OP_SERVICE_ACCOUNT_TOKEN=$($env:OP_SERVICE_ACCOUNT_TOKEN)" -Encoding utf8
+}
\ No newline at end of file
diff --git a/install_cli.sh b/install_cli.sh
index 0d39259b..667856a7 100755
--- a/install_cli.sh
+++ b/install_cli.sh
@@ -14,7 +14,7 @@ install_op_cli() {
   # Get the latest stable version of the CLI
   CLI_VERSION="v$(curl https://app-updates.agilebits.com/check/1/0/CLI2/en/2.0.0/N -s | grep -Eo '[0-9]+\.[0-9]+\.[0-9]+')"
 
-  if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+  if [[ "$RUNNER_OS" == "Linux" ]]; then
     # Get runner's architecture
     ARCH=$(uname -m)
     if [[ "$(getconf LONG_BIT)" = 32 ]]; then
@@ -32,13 +32,16 @@ install_op_cli() {
 
     curl -sSfLo op.zip "https://cache.agilebits.com/dist/1P/op2/pkg/${CLI_VERSION}/op_linux_${ARCH}_${CLI_VERSION}.zip"
     unzip -od "$OP_INSTALL_DIR" op.zip && rm op.zip
-  elif [[ "$OSTYPE" == "darwin"* ]]; then
+  elif [[ "$RUNNER_OS" == "macOS" ]]; then
     curl -sSfLo op.pkg "https://cache.agilebits.com/dist/1P/op2/pkg/${CLI_VERSION}/op_apple_universal_${CLI_VERSION}.pkg"
     pkgutil --expand op.pkg temp-pkg
     tar -xvf temp-pkg/op.pkg/Payload -C "$OP_INSTALL_DIR"
     rm -rf temp-pkg && rm op.pkg
+  elif [ "$RUNNER_OS" = "Windows" ]; then
+    pwsh -Command "Invoke-WebRequest -Uri https://cache.agilebits.com/dist/1P/op2/pkg/${CLI_VERSION}/op_windows_amd64_${CLI_VERSION}.zip -OutFile op.zip"
+    pwsh -Command "Expand-Archive -Path op.zip -DestinationPath '${OP_INSTALL_DIR}'; Remove-Item op.zip"
   else
-    echo "Operating system not supported yet for this GitHub Action: $OSTYPE."
+    echo "Operating system not supported yet for this GitHub Action: $RUNNER_OS."
     exit 1
   fi
 }