diff --git a/.ci/upload_win_installer.sh b/.ci/upload_win_installer.sh
new file mode 100644
index 000000000..44d8087c8
--- /dev/null
+++ b/.ci/upload_win_installer.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+dest="ftp://shelter.mahoro-net.org/aegisub-japan7"
+
+tag=$(git describe --exact-match)
+[ "$tag" ] || exit
+curl -T 'packages\win_installer\output\Aegisub-Japan7-x64.exe' --user $FTP_USER:$FTP_PASS "$dest/Aegisub-Japan7-x64-${tag#v}.exe"
+
+printf "$tag\n$(git tag -l --format='%contents' $tag)" > latest
+curl -T latest --user "$FTP_USER:$FTP_PASS" "$dest/"
+
diff --git a/appveyor.yml b/appveyor.yml
index d740e10d5..b8cf77c36 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -77,5 +77,8 @@ after_build:
   - cd packages\win_installer
   - iscc aegisub3.iss
 
+on_success:
+  - bash.exe .ci\upload_win_installer.sh
+
 artifacts:
   - path: packages\win_installer\output\Aegisub-Japan7-x64.exe