diff --git a/.drone.yml b/.drone.yml
index 4105fd6..f6c3a52 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -218,40 +218,50 @@ steps:
       - git describe --tags > VERSION
       - powershell -command "Get-Date -Format 'yyyy-MM-dd-HH-mm'" > BUILDDATE
       - .\fetch-libcwtch-go.ps1
-      -
+
   - name: build-windows
     image: openpriv/flutter-desktop:windows-sdk30-fdev2.3rc
+    environment:
+      pfx:
+        from_secret: pfx
+      pfx_pass:
+        from_secret: pfx_pass
     commands:
+      - move pubspec.yaml pubspec.yaml.orig
+      - (Get-Content -path pubspec.yaml.orig -Raw) -Replace 'pfx_pass',"$Env:pfx_pass" | Set-Content -path pubspec.yaml
       - flutter pub get
-        # flwtch-`cat VERSION`-`cat BUILDDATE`
-      - $Env:buildname = 'flwtch-win-'
       - $Env:version += type .\VERSION
-      - $Env:buildname += $Env:version
-      - $Env:buildname += '-'
       - $Env:builddate += type .\BUILDDATE
-      - $Env:buildname += $Env:builddate
-      - $Env:builddir += $Env:buildname
-      - $Env:zip = 'cwtch-'
-      - $Env:zip += $Env:version
-      - $Env:zip += '.zip'
-      - $Env:sha = $Env:zip
-      - $Env:sha += '.sha512'
+      - $Env:buildname = 'flwtch-win-' + $Env:version + '-' + $Env:builddate
+      - $Env:builddir = $Env:buildname
+      - $Env:zip = 'cwtch-' + $Env:version + '.zip'
+      - $Env:zipsha = $Env:zip + '.sha512'
+      - $Env:msix = 'cwtch-install-' + $Env:version + '.msix'
+      - $Env:msixsha = $Env:msix + '.sha512'
+      - $Env:releasedir = "build\\windows\\runner\\Release\\"
+      - echo $Env:releasedir
+      - echo $Env:builddir
       - flutter build windows --dart-define BUILD_VER=$Env:version --dart-define BUILD_DATE=$Env:builddate
-      - mkdir deploy
-      - move build\\windows\\runner\\Release $Env:builddir
-      - copy windows\libCwtch.dll $Env:builddir
+      - copy windows\libCwtch.dll $Env:releasedir
       # flutter hasn't worked out it's packaging of required dll's so we have to resort to this manual nonsense
       # https://github.com/google/flutter-desktop-embedding/issues/587
       # https://github.com/flutter/flutter/issues/53167
-      - copy C:\BuildTools\VC\Redist\MSVC\14.29.30036\x64\Microsoft.VC142.CRT\vcruntime140.dll $Env:builddir
-      - copy C:\BuildTools\VC\Redist\MSVC\14.29.30036\x64\Microsoft.VC142.CRT\vcruntime140_1.dll $Env:builddir
-      - copy C:\BuildTools\VC\Redist\MSVC\14.29.30036\x64\Microsoft.VC142.CRT\msvcp140.dll $Env:builddir
-      - powershell -command "Expand-Archive -Path tor.zip -DestinationPath $Env:builddir\Tor"
-      - powershell -command "Compress-Archive -Path $Env:builddir -DestinationPath $Env:zip"
-      - powershell -command "(Get-FileHash *.zip -Algorithm sha512).Hash" > $Env:sha
+      - copy C:\BuildTools\VC\Redist\MSVC\14.29.30036\x64\Microsoft.VC142.CRT\vcruntime140.dll $Env:releasedir
+      - copy C:\BuildTools\VC\Redist\MSVC\14.29.30036\x64\Microsoft.VC142.CRT\vcruntime140_1.dll $Env:releasedir
+      - copy C:\BuildTools\VC\Redist\MSVC\14.29.30036\x64\Microsoft.VC142.CRT\msvcp140.dll $Env:releasedir
+      - powershell -command "Expand-Archive -Path tor.zip -DestinationPath $Env:releasedir\Tor"
+      - dir $Env:releasedir
+      - echo $Env:pfx > codesign.pfx.b64
+      - certutil -decode codesign.pfx.b64 codesign.pfx
+      - flutter pub run msix:create
+      - mkdir deploy
       - mkdir deploy\$Env:builddir
-      - move $Env:zip deploy\$Env:builddir
-      - move $Env:sha deploy\$Env:builddir
+      - dir deploy
+      - powershell -command "move $Env:releasedir\cwtch.msix deploy\$Env:builddir\$Env:msix"
+      - move $Env:releasedir $Env:builddir
+      - powershell -command "Compress-Archive -Path $Env:builddir -DestinationPath $Env:zip"
+      - powershell -command "move $Env:zip deploy\$Env:builddir\"
+      - powershell -command "(Get-FileHash deploy\$Env:builddir\$Env:zip -Algorithm sha512).Hash" > deploy\$Env:builddir\$Env:sha
       
   - name: deploy-windows
     image: openpriv/flutter-desktop:windows-sdk30-fdev2.3rc
diff --git a/pubspec.lock b/pubspec.lock
index 3db29ce..c59f48b 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -428,15 +428,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
-  window_size:
-    dependency: "direct main"
-    description:
-      path: "plugins/window_size"
-      ref: e48abe7c3e9ebfe0b81622167c5201d4e783bb81
-      resolved-ref: e48abe7c3e9ebfe0b81622167c5201d4e783bb81
-      url: "git://github.com/google/flutter-desktop-embedding.git"
-    source: git
-    version: "0.1.0"
   xdg_directories:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 31814d3..7e0eca9 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -45,12 +45,8 @@ dependencies:
   flutter_driver:
     sdk: flutter
 
-  window_size:
-    git:
-      url: git://github.com/google/flutter-desktop-embedding.git
-      path: plugins/window_size
-      ref: e48abe7c3e9ebfe0b81622167c5201d4e783bb81
-
+dev_dependencies:
+  msix: ^2.1.3
 # Uncomment to update lokalise translations (see README for list of deps to comment out bc incompatibilities)
 #dev_dependencies:
 #  flutter_lokalise: any
@@ -116,3 +112,19 @@ flutter:
   #
   # For details regarding fonts from package dependencies,
   # see https://flutter.dev/custom-fonts/#from-packages
+
+
+msix_config:
+  display_name: Cwtch
+  publisher_display_name: Open Privacy Research Society
+  identity_name: im.cwtch.flwtch
+  msix_version: 1.0.0.0
+  certificate_path: codesign.pfx
+  certificate_password: pfx_pass
+  publisher: CN=Open Privacy Research Society, O=Open Privacy Research Society, L=Vancouver, S=British Columbia, C=CA
+  logo_path: cwtch.png
+  start_menu_icon_path: cwtch.png
+  tile_icon_path: assets\cwtch_title.png
+  icons_background_color: transparent
+  architecture: x64
+  capabilities: 'internetClient'