diff --git a/admin/nt/dist-build/build-zips.sh b/admin/nt/dist-build/build-zips.sh
index 8eaa3a9..1342604 100755
--- a/admin/nt/dist-build/build-zips.sh
+++ b/admin/nt/dist-build/build-zips.sh
@@ -102,6 +102,7 @@
 SNAPSHOT=
 CACHE=

+INSTALLER=1
 BUILD=1
 BUILD_32=1
 BUILD_64=1
@@ -110,7 +111,7 @@ CONFIG=
 CFLAGS="-O2 -static"
 INSTALL_TARGET="install-strip"

-while getopts "36gb:hnsiV:" opt; do
+while getopts "36gb:hnsizV:" opt; do
   case $opt in
     3)
         BUILD_32=1
@@ -152,8 +153,12 @@ INSTALL_TARGET=
         echo "  -6 64 bit build only"
         echo "  -g git update and worktree only"
         echo "  -i build installer only"
+        echo "  -z only build zip files"
         exit 0
         ;;
+    z)
+        INSTALLER=0
+        ;;
     \?)
         echo "Invalid option: -$OPTARG" >&2
         ;;
@@ -223,7 +228,10 @@ OF_VERSION=
     then
         build_zip x86_64 /mingw64/lib/pkgconfig x86_64-w64-mingw32
     fi
-    build_installer x86_64
+    if (($INSTALLER))
+    then
+        build_installer x86_64
+    fi
 fi

 ## Do the 64 bit build first, because we reset some environment
@@ -234,5 +242,8 @@ OF_VERSION=
     then
         build_zip i686 /mingw32/lib/pkgconfig i686-w64-mingw32
     fi
-    build_installer i686
+    if (($INSTALLER))
+    then
+        build_installer i686
+    fi
 fi