diff --git a/Makefile b/Makefile
index 071c61e..dcf116b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-.PHONY : help all clean veryclean fetch build artifacts update full-mar serve-mar
+.PHONY : help all clean veryclean fetch build artifacts update full-mar serve-mar langpacks
 
 help :
 	@echo "Use: make [all] [clean] [veryclean] [check] ..."
@@ -9,6 +9,7 @@ help :
 	@echo "  update    - update 'version' and 'source_release' files."
 	@echo "  full-mar  - create mar setup file, and update.xml."
 	@echo "  serve-mar - serve the update files"
+	@echo "  langpacks - build language packs."
 	@echo ""
 	@echo "  fetch     - Fetch the latest librewolf source."
 	@echo "  build     - Perform './mach build && ./mach package' on it."
@@ -55,3 +56,6 @@ full-mar :
 
 serve-mar :
 	(cd librewolf-$(shell cat version)-$(shell cat source_release)/MAR && python3 -m http.server 8000)
+
+langpacks :
+	(cd librewolf-$(shell cat version)-$(shell cat source_release) && cat browser/locales/shipped-locales | xargs ./mach package-multi-locale --locales)
diff --git a/assets/mozconfig.windows b/assets/mozconfig.windows
index 9450987..1c4e8e3 100644
--- a/assets/mozconfig.windows
+++ b/assets/mozconfig.windows
@@ -36,3 +36,6 @@ ac_add_options --enable-strip
 # https://firefox-source-docs.mozilla.org/taskcluster/setting-up-an-update-server.html
 
 ac_add_options --disable-verify-mar
+
+# Internationalization
+ac_add_options --with-l10n-base=$PWD/browser/locales/l10n
diff --git a/assets/tryfix-reslink-fail.patch b/assets/tryfix-reslink-fail.patch
new file mode 100644
index 0000000..dfe074d
--- /dev/null
+++ b/assets/tryfix-reslink-fail.patch
@@ -0,0 +1,11 @@
+--- browser/app/splash.rc~	2022-04-29 00:02:33 +0200
++++ browser/app/splash.rc	2022-05-04 14:30:43 +0200
+@@ -12,7 +12,7 @@
+ IDI_NEWWINDOW ICON NEWWINDOW_ICO
+ IDI_NEWTAB ICON NEWTAB_ICO
+ IDI_PBMODE ICON PBMODE_ICO
+-IDI_DOCUMENT_PDF ICON DOCUMENT_PDF_ICO
++IDI_DOCUMENT_PDF ICON DOCUMENT_ICO
+ 
+ STRINGTABLE DISCARDABLE
+ BEGIN
diff --git a/mk.py b/mk.py
index 8dc4676..c2e034c 100644
--- a/mk.py
+++ b/mk.py
@@ -100,9 +100,10 @@ def build(debug=False):
             else:
                 exec('cp -v ../assets/mozconfig.windows mozconfig')
 
-                # two patches for windows only, currently
-                patch('../assets/disable-verify-mar.patch')
+                # patches for windows only
                 patch('../assets/package-manifest.patch')
+                patch('../assets/disable-verify-mar.patch')
+                patch('../assets/tryfix-reslink-fail.patch')
 
                 # perform the build and package
                 exec('MACH_USE_SYSTEM_PYTHON=1 ./mach build')